magic-gigapans

Northern Virginia Community College

Annandale, VA

Public Images

Sediment from Cushendun, Northern Ireland
Rose quartz
Shatter cones, Vredefort impact structure, South Africa
Sediment from Blackbird Caye, Turneffe Atoll, Belize
Moldavite
Castner Marble
Mather Gorge
Giant current ripples, Crescent Bar, WA
Marble Breccia, Plane Polars
Obsidian trio
Paleoproterozoic gneiss, Clear Creek Canyon, Colorado
Northern Hueco Mountains Escarpment
Contact between Fauquier Formation marble and Catoctin Formation greenstone, near Lime Kiln Road, Virginia
Chippokes Plantation, near visitor center
Beach Sand from Punta Uva, Puerto Viejo, Limon, Costa Rica
Corona Heights Fault, San Francisco
Pseudotachylyte from Asbestos Mountain, CA, Plane Polars
Sedimentary Rocks Lab Sample L
Volcanic rocks exposed at Eshaness, Shetland
"Dunbar Marble": Mississippian limestone chock full of rugose corals
Lamprophyre dikes on the Virginia side, visible from the Billy Goat Trail
Igneous Rocks Lab Sample J
Giant current ripples from Missoula Megafloods, Crescent Bar, Washington
Unknown Igneous Rock Sample
Wills Mountain, The Narrows, Cumberland, Maryland
Catoctin Formation metabasalt showing amygdules and asbestos veins
Microbially induced sedimentary structures, Barberton
Diptera 1105a
Eyjafjallajökull from Flotshlid
Glycymeris trio
Meteorite Northwest Africa 869, cut face
Red Bluff Granite
Calvert Formation, Scientists' Cliffs, Maryland (#4 of 8)
Sediment from the end of the swimming run at Blue Spring State Park, Orange City, Florida
Blastoid, top view
Difficult Run Migmatite 1
Porphyroblastic schist, Glen Roy, Scotland
Graphite, 3330x
Graywacke, Plane Polars
Augen Gneiss, Crossed Polars
Folded and faulted rocks at Summerleaze Beach, Bude
Prom?
Petrified wood
Amethyst
Graded bedding in the Mechum River Formation, Sharp Top
Limestone (biosparite)
Bloomsburg Formation outcrop
Sediment from Wicklow Beach, Ireland
Fort Valley from Buzzard Rocks
Slickensides of epidote in diorite
Grand Canyon - Hopi Point Overlook 180 Degree Panorama View
Titanite
Flathead Sandstone, Wind River Canyon, Wyoming
Komatiite, Barberton Greenstone Belt
Ilmenite
Georgetown Intrusive Suite, Rock Creek Park, Washington, DC
Icelandic valley #2
Folded strata of the Silurian Tonoloway Formation
Calcite and [?] precipitated on gneiss used as aquarium decoration, face 3 of 3
Waterfall Formation boulder
Sedimentary Rocks Lab Sample U
Chancellor Group showing deformation, Yoho National Park, British Columbia, Canada
Serpentine Marble, Crossed Polars
Martinsburg Formation, Millner Road (near Deer Rapids Road), Shenandoah County, Virginia
Pyrite in greenschist
Snowball Earth Educational Rock Sample Suite 7
Kilbourne Hole 360, January 2009
Trilobite, Devonian of Morocco
Tempestite
View west from Woodstock Tower, Massanutten Mountain
Fig Tree Formation banded chert
Garnet in Castner Marble, Franklin Mountains, West Texas
Mistaken Point
Porphyritic Andesite, Crossed Polars
Grand Canyon GigaView #25 Blacktail Canyon
Holland Point, Virginia
Sandstone
Athabasca Glacier with prominent lateral moraines
Peridotite from the Josephine Ophiolite, California
Dropstones in weakly-lithified "silt-ite" from Looking Glass Highway, east of Glacier National Park
Sphalerite, Plane Polars
Quartz
Permian Peaks - Sheep Mountain Anticline, Wyoming
Igneous Rocks Lab Sample E
Giant's Causeway, Northern Ireland
Shear zone in granite
Lepidodendron
Stretched belemnite fossil
Chambersville - Base of the Foreknobs Formation
Strophomenid brachiopods
Diptera tipulidae 2380a
Conococheague Formation at Mulberry Run, showing stromatolites
Metamorphic Rocks Lab Sample D
Double-Terminated Quartz Crystals
Grind of the Navir
Travertine at Tumbling Run
Dike cross-cutting Colonsay Group meta-sediments, Machir Beach, Islay, Scotland
Wall of Makanda Sandstone, Giant City State Park, Illinois
Mylonite, North-West Highlands, Scotland
Oriskany sandstone, crossed polars
Coiba Mica - Coiba Mare cave system (here is the Coiba Mare entry), Apuseni Mountains, Transylvania, Romania
Stoer group unconformity (over Lewisian gneiss), Clachtoll, Scotland.
Fossils in the Martinsburg Formation
Gowganda Tillite
The Quake Lake Slide - Hebgen Lake, Montana
Red slate with elongated reduction spots
Enstatite, Plane Polars
Quarry in Rockfish Conglomerate
Sediment from Fiumefreddo, Sicily
Ordovician Oneota Dolomite 1
Unknown Sedimentary Rock Sample
Outcrop of upturned Paleozoic strata on Highway 16
Mudcracks and gypsum casts
Ostracodes and brachiopods in Tonoloway Formation limestone
K/T boundary. Gubbio, Italy #4
Sand from Siesta Key, Florida
Spherulitic felsite dike, Shetland
Spinifex texture in komatiite, Barberton Greenstone Belt, South Africa
Buck Reef Chert
Actinolite in Actinolite Schist, Crossed Polars
Cape Granite
Polysynthetic Twinning in Albite, Plane Polars
Setters Schist
Coal Bed, Corridor H, West Virginia
Tiny faults and folds
Antietam Breccia 2
Ecphora gardnerae, interior view
Shark Bay 1
Albite in Diorite, Crossed Polars
Castile Fm. Evaporites
Archean-aged phyllite, Ontario, Canada
Kink banding in Laurel Formation of Rock Creek Shear Zone, Broad Branch, Washington, DC
Folds exposed at Riggins, Idaho
Ammonite
Conglomerate with Hematite Cement, Crossed Polars
Blastoid, side view
Harpers Formation at Jefferson Rock, Harpers Ferry, West Virginia
Green Tuff from Jawbone Flats, Oregon
Conemaugh Group, showing paleoslump and fluvial scour features, Corridor H, West Virginia
Castner Marble roadcut in Franklin Mountains
Baraboo Quartzite - Van Hise Rock
Calcite
Azurite and malachite
Heat-treated amethyst
Blue kyanite
Cross-cutting features in a block of limestone
Graptolite fossils, Martinsburg Formation
Lewisian gneiss exposed near Durness, Scotland
Coastal ecology, West Boothbay Harbor, Maine
Porphyritic green metavolcanic rock, St. Anthony, Newfoundland
Olivine in Gabbro, Plane Polars
Klingle Valley metaconglomerate, Laurel Formation, Rock Creek Shear Zone, Washington, DC
Urbanite
Strobilus cone fossil
Volcaniclastic sediment, Kirkjufjara Beach, Iceland
Old Man of Hoy
Lycopsid bark
Outcrop along Highway 15, Oman
Epidosite, Plane Polars
The Rock and Spindle, Kinkell Ness, Scotland
Tremolite in quartzite
Sediment from Sandy Cove, Newfoundland and Labrador
Pool at Hofsos, #2
Mahantango Formation, showing Zoophycos trace fossils
Buck Reef Chert, Barberton Greenstone Belt
Sand from Crescent City Beach, Crescent City, California
Graded bed in Martinsburg Formation turbidites, Peach Orchard Gap, Virginia
Ernietta Hill
Martinsburg Formation, South Page Valley Road, Page County, Virginia
Scoria
Buzzard Rocks
"Talking Bears" Outcrop - Sheep Mountain Anticline, Wyoming
Foreknobs Formation - Baker section 2
Diptera tipulidae 1215
Martinsburg Formation, Millner Road and Bethel Road, Shenandoah County, Virginia
Semionotid fish (Triassic), Culpeper Basin, Virginia
Siccar Point, Scotland
Weverton Formation exposed at Thoroughfare Gap, Virginia
Thin Section of the Doushantuo Phosphorite
Mudcrack Wall, limestone quarry on Old Route 55, West Virginia
Diptera tipulidae 007
Healed break in hadrosaur bone
Paleoslump and Fluvial Incision Structures, Conemaugh Group, Corridor H, West Virginia
Klingle Valley metaconglomerate, Laurel Formation, Rock Creek Shear Zone, Washington, DC
Sediment from the Moray Coast, Northeast Scotland
Gunflint SCH55 22A
Augen gneiss
Antietam Formation (quartzite) breccia with iron and manganese oxide cement
Sandstone of Hampshire Formation, Corridor H, West Virginia
Magnetite with Fayalite
Sand from the Sea of Siam, Pattaya, Thailand
Sediment from Big Run, Shenandoah National Park
Beach cobbles, Mill Bay, Rathlin Island, Northern Ireland
Magnetite-Rich Sand from Fort Funston Beach, San Francisco, CA
Mantle xenolith
Brallier Formation - Baker section 6
Echinoid
Amphibolite, Crossed Polars
Unconformity east of Portrush
Pemaquid Point, Maine
Shear zone in gabbro
Stromatolites, Helena Formation, near Crypt Lake, Waterton Lakes National Park, Alberta
Snowball Earth Eduational Rock Sample Suite TS-7
Pressure solution seams
Stretched beach cobbles, Funzie Bay, Fetlar
Martinsburg Formation, South Page Valley Road, Page County, Virginia
Fault scarp at Þingvellir
Clastic dike
Contact between Fauquier Formation marble and Catoctin Formation greenstone, near Lime Kiln Road, Virginia
Bluestone Limestone, Carrier Library Exterior, James Madison University
Serpentine, var. chrysotile
Stromatolites, Helena Formation, near Crypt Lake, Waterton Lakes National Park, Alberta
Sediment from Glass Beach, Ft. Bragg, California
Red cross-beds (annotated)
Foreknobs Formation - Corridor H Needmore section 2
Metamorphic Rocks Lab Sample T
Trilobite Pseudogygites, Ontario, Canada
S-C fabric in Rockfish Conglomerate, Virginia Blue Ridge
Diptera 248
Mahantango Formation
Walker Top mylonite
Diamictite of the Gaskiers Formation
Clay shale
Chlorite Schist, Plane Polars
Unknown Sedimentary Rock Sample
Faulted granite dike, Rock Creek Park, Washington, DC
Rockwell Formation diamictite, plane polars
Calvert Formation, Scientists' Cliffs, Maryland (#1 of 8)
Contact between Fauquier Formation marble and Catoctin Formation greenstone, near Lime Kiln Road, Virginia
Upper Jurassic Morrison Fm. - Sheep Mountain Anticline, Wyoming
Mylonite
Sediment from Accotink Creek, Fairfax, Virginia
Sea stacks and sea bird nesting sites, north of West Lighthouse, Rathlin Island, Northern Ireland, U.K.
Fossil Annularia and Mariopteris nervosa
Microbead found in sediment from Accotink Creek, Fairfax, Virginia
Great Unconformity, Wind River Canyon, Wyoming
Evaporite texture in Tonoloway Formation
Sediment from Tennessee Valley Beach, California
Patuxent River Tributary Sediment at 5020x
Phyllite, Plane Polars
Brallier Shale on NEW New WV 55 (version 1)
Rockwell Formation concretion, side A
Sediment from Fernandina Beach, Amelia Island, Florida
Duplex Structure in the Gastropod Limestone, Sandy Hollow, Montana
Mylonite
Big Rocky Run Sediment at 4680x
Ozark Cave
Limestones near Carlsbad, New Mexico
Diptera tipulidae 2223b
Mahantango Formation showing trace fossils, Fort Valley Road, Virginia
Foram from Andros Island, Bahamas, 2900x
Sulfur
Folded turbidites at Saligo Bay, Islay, Scotland.
Rockwell Formation diamictite, crossed polars
Leopard Rock of the Beartooth Highway
Heliophylum halli
Diorite, Crossed Polars
Rockwell Formation diamictite
Rockwell Formation diamictite, Sideling Hill, Maryland
Graptolites from Dob's Linn, Scotland
Old Red Sandstone, cliff at Dunbar, Scotland
Granitoid dike from Clear Creek Canyon, Colorado
Flute casts in Brallier Formation shale
Reaction rim
Pyrrhotite
Ball and pillow
Isognomon
Andalusite
Physical Geology Mineral Lab Sample 2b
Sandstone with Calcite Cement, Crossed Polars
Dike contact exposed at Kildonan, Arran, Scotland
Hymenoptera 1121
Phlogopite
Imbricate zone, Durness Limestones, North-West Highlands, Scotland
Pteridinium from Farm Aar
Cooling columns, Catoctin Formation, exposed at Indian Run Overlook, Skyline Drive, Shenandoah National Park, Virginia
Red Hole, Passage Creek, George Washington National Forest, Virginia (#2 of 2)
Mylonite, North-West Highlands, Scotland
Cushendun Conglomerate of the Cross Slieve Group, Cushendun, Northern Ireland
Skolithos in the Hampshire Formation
Chert
Shark teeth and whale vertebra
Conglomerate with Hematite Cement, Plane Polars
Ash from Mount St. Helens
Anorthosite, Adirondack Mountains, New York
Hueco Tanks
Maidens Gneiss, Plane Polars
Garnet
Papil Water, Fetlar, Shetland
Heavy Mineral Sediment from Carmel Beach, California
Calcite in Precambrian-Aged Amygdaloidal Basalt, Crossed Polars
Indian Ocean microconcretion
Albite
Hueco Group anthill
The Clydesdale Fault, Washington, DC
Slickenfibers in serpentenite
Just a cool rock.
Blueschist (fine-grained; ~phyllite)
Rippled Eldon Formation
Sand from Calvert Cliffs State Park, Maryland
Greenland Gap Group Shale - Bergton, VA
Igneous Rocks Lab Sample G
Foreknobs formation- Corridor H Needmore section 3
Grind of the Navir
Mahantango Formation showing trace fossils, Fort Valley Road, Virginia
Chesapecten middlesexensis
Sediment from Mt. Suswa, Kenya
Sand from Zatoka, Odessa Oblast, Ukraine
Spherulitic felsite, Shetland
Marble, Plane Polars
Mt. Louis, Banff National Park, Alberta
Flame structures
Papilliform stromatolite, Green River Formation
Mole Hill basalt
Passage Creek NOT in flood
Olivine-rich volcaniclastic sand and shell fragments, Kaua'i, Waimea, Hawai'i
Gabbro, Crossed Polars
Base of the Stac Fada Member of the Clachtoll Formation of the Stoer Group, North-West Highlands, Scotland
Harpers Formation, Harpers Ferry, West Virginia
Lunar Breccia Sample 65015, Crossed Polars
Echinoid hemicidaris
Talc, Crossed Polars
Sugarloaf Mountain quartzite
Laminated micrite
Foram from Ronasvoe, Shetland, Scotland
Diptera tipulidae 1076
Corumbella campground
Broad Run
Green quartzite
Ouray Ampitheater
Ronas Hill Granite, Crossed Polars
Folded gneiss
Nature baths, Mývatn, Iceland
Gigantoproductus giganteus productid brachiopod fossils in Permian limestone, Arran, Scotland
Kilbourne Hole - East Crater Wall
Orthoclase (Potassium Feldspar)
Native Copper
Foreknobs Formation exposed on Rt. 50 west of Gore, Virginia
Sediment from Port Charlotte, Islay, Scotland
View over paleotopography below the Buck Reef Chert
Igneous Rocks Lab Sample B
Lapilli from near Chaupi, Ecuador
Sediment from Spanish Bay Beach, CA
Unknown sedimentary sample
Fluvial and lahar deposits at Cold Springs, California
Porphyry
Öxará River at Þingvellir National Park, Iceland
Tourmaline in Lepidolite
Phyllite, Crossed Polars
Looking west from Spruce Knob, West Virginia
Metamorphic Rocks Lab Sample A
Graded beds of pisolites, Tansil Formation
View SSW from Duncan Knob, George Washington National Forest, Virginia
Alma, Wisconson-Minnesota
Graphite Schist, Plane Polars
Evan Thomas Flood Wash
Folded metamorphic rocks exposed along the shore of Cabbage Island, Maine
Corona Heights Fault, San Francisco
Pseudotachylyte from Vredefort, South Africa
Metamorphic Rocks Lab Sample K2, Bottom View
S-C fabric in schist, Dover Fault, Newfoundland
Evaporite texture in Tonoloway Formation
Siccar Point, Scotland
View south from Table Mountain toward Chapman's Peak and the Cape of Good Hope
Brain coral
Unknown Sedimentary Sample
Sediment from Scientists' Cliffs, Maryland
Fossils and storm deposits in Tonoloway limestone
Metamorphic Rocks Lab Sample K1
Sand from Al Habab, Dubai, UAE
Ellicott City granodiorite, Ellicott City, Maryland
Angular unconformity, Death Valley National Park
LIDAR Weverton Formation - Blue Ridge front, Virginia
Martinsburg Formation exposed at Staunton, Virginia
Buda Formation fold
Diamond fossils in limestone
Glycymeris trio
Confusion Hill medium-range outcrop #2
Wisconsin Red Granite
Physical Geology Mineral Lab Sample 10-12
Diatomaceous earth
Apatite in Orthoclase
Confusion Hill detail shot 1 - Castner Formation
Stromatolitic Bonahaven Dolomite, south of Bunnahabhain, Islay, Scotland
Beach sand from Hapuna Beach on the Big Island of Hawaii
Garnet schist
Curwensville Reservoir
Sand from Halls Lake, Ontario, Canada
Brachiopod fauna of the Nealmont Formation, Germany Valley, West Virginia
Cristo Rey: Buda Formation - Fossils in the quarry
Lower Mississippian Rockwell Formation roadcut on Corridor H, West Virginia
Igneous Rocks Lab Sample H
Differential weathering
Martinsburg Formation, South Page Valley Road, Page County, Virginia
Ammonite
Metamorphosed, boudinaged bedding of the Mather Gorge Formation
Little ammonite
Bow River Falls, Banff
Martinsburg Formation
Glacial cobble
Thin Section of Deformed Quartzite with Small Pebbles
Reynolds Member of the Mauch Chunk Formation
Geologic Map of the Devil Slide Quadrangle, Hot Springs County, Wyoming
Migmatite, Crossed Polars
Unknown Sedimentary Rock Sample
Setters Schist
Biotite Gneiss, Crossed Polars
Mud cracks in Castner Marble argillite
Sedimentary Rocks Lab Sample Z
Brown limestone
Page Valley, Virginia
Cushendun Conglomerate of the Cross Slieve Group, Cushendun, Northern Ireland
Fault breccia in the Helderberg Group
Asterotheca miltoni
Epidotized fault contact between two gneisses
Metavolcanic and metasedimentary mélange, Franciscan Complex, Pacifica, California
Hell's Half Acre, Wyoming
Sandstone blocks near Seneca Quarry, Maryland
Climbing ripples in Millboro Formation shale
Metamorphic rocks exposed along the shore of Cabbage Island, Maine
Grus
Mahantango Formation, showing fossil brachiopod fauna
Slate
"Madeira Point" on the Billy Goat Trail
Tanytrachelos, from the Solite Quarry in the Dan River Basin, Virginia
Pyrolusite
Zoophycos trace fossils in Mahantango Formation
Railroad cut, Linden, Virginia
Igneous Rocks Lab Sample P
Metamorphic Rocks Lab Sample Q
Mineral Sample M
The nascent NOVA Annandale rock garden, as of May 2012
Wapiti Fm. Volcaniclastics - Cody, Wyoming
Zoophycos
Devonian Hampshire and lower Mississippian Rockwell Formations roadcut on Corridor H, West Virginia
Sediment from the Calvert Formation, Base of Zone 10
Fusulinids
Meteorite from Morocco
Sediment from Pfeiffer Beach, California
Augite, Plane Polars
Mudchip rip-up clasts in argillite of varying oxidation states and quartzite of the Grinnell Formation
Chalcedony
Rugose coral calyces
Physiography of the central Appalachians
Sediment from Kirby Cove, Marin County, California
South lateral moraine, Athabasca Glacier (inside view)
Ammonites in contact-metamorphosed Lias, Portrush, Northern Ireland
Mylonite with well-developed foliation and lineation
Upper Gypsum Springs Formation - Sheep Mountain Anticline, Wyoming
Dewatering structure (?)
Araucaria
Brachiopods and crinoid stems in Mississippian-aged Reynolds Limestone
Port Askaig "Tillite" (Diamictite), Islay, Scotland
Ridgeley Sandstone fauna
S-C Mylonite
Sedimentary Rocks Lab Sample P
Sandstone roll-up feature in the Stac Fada Member of the Clachtoll Formation of the Stoer Group, North-West Highlands, Scotland
Vesicular basalt
Diorite
Differential Weathering, Sideling Hill, Maryland
Sunwapta Glacier
Stretched clasts in Laurel Formation metagraywacke, Rock Creek Shear Zone, Washington, DC
Banded iron formation, Barberton Greenstone Belt, South Africa
Triassic red beds, near Kildonan, Arran, Scotland
Portrush: hornfels (contact metamorphosed Lias shale) above Portrush gabbroic/doleritic sill
Eocene-aged fish from the Green River Formation
Giant ooids
Internal mold of a clam
Martinsburg Formation at Guard Hill, north of Front Royal, Virginia
Folds in Lewisian gneiss (weathered), Achmelvich, Scotland
Coarse Sediment from Canoa Beach, Ecuador
Sedimentary Rocks Lab Sample J
Catoctin Formation greenstone
Rockwell Formation diamictite, exposed on Corridor H, West Virginia (second berm)
Microbially induced sedimentary structures, Barberton
Actinolite in Actinolite Schist, Plane Polars
Mylonite near Eriboll, Scotland
Martinsburg Formation, South Page Valley Road, Page County, Virginia
Martinsburg Formation, South Page Valley Road, Page County, Virginia
Igneous/sedimentary contact, Arran
Devil's Racecourse, Ft. Ritchie, Maryland
Sillimanite in kaolinite
"Breccia Wall," Antietam Formation, SE Boyce quadrangle, Virginia
Harpers Formation exposed at Glasscock Gap, Virginia (Outdoor Lab)
Crepidula
Brachiopods and crinoid stems in Mississippian-aged Reynolds Limestone
Diptera tipulidae 846a
Amygdules from Precambrian-aged Castle Danger Basalt
Conemaugh Formation Sandstone
Mylonite / "LS Tectonite"
Microbial sulfate reduction spots
View east over paleotopographic relief at the base of the Buck Reef Chert
Marble and blueschist, Perissa, Greece
Cobbles, Church Bay, Rathlin Island, Northern Ireland
Sediment from Acadia National Park, Maine
Snowball Earth Educational Rock Sample Suite TS-15
Sand from Siesta Key, Florida
Miette Group hand sample
Mineral Sample Set N
CPR Tunnel Debris Flow
Outcrop at the intersection of Fort Valley Road and Ramsey Road, Fort Valley, Virginia
Double unconformity at Beinn Garbh, North-West Highlands, Scotland
Fucoid beds
Fauquier Formation limestone, plane polars
Paleoproterozoic gneiss, Clear Creek Canyon, Colorado
The Leesburg Conglomerate at Ida Lee Park
Astrhelia palmata
Dolomite, Crossed Polars
Boudinaged tourmalines in Setters Schist, Maryland
Pebble-bearing Massanutten Sandstone
Travertine
Sheared Dalradian metaturbidites w/ dike tip at Lochranza, Arran, Scotland
Confusion Hill
Sand from Scientists' Cliffs, Chesapeake Bay, Maryland at 3530x
Arkose, Crossed Polars
Cape Granite II
Ulster White Limestone ("The Chalk") with belemnite fossil, Rathlin Island, Northern Ireland (U.K.)
Sample from the Dead Sea, Israel
"Cub Sandstone" (Uppermost Martinsburg Formation), near Catherine Furnace, Virginia
Sedimentary Rocks Lab Sample I
Skolithos
Devil Canyon Overlook, Bighorn Canyon National Recreation Area, Wyoming
Serpentinite melange, Marshall's Beach, San Francisco
Brecciated and folded Montoya Group
Ultramylonite
Harpers Formation, Thoroughfare Gap, Virginia
Diptera tipulidae 2227b
Kilbourne Hole, detail A
Moore House Member - West
Chesapecten jeffersonius
Brachiopod from the Needmore Shale
Graded carbonate beds
Confusion Hill medium-range outcrop #4
Arsenopyrite
Shell-rich horizon in Mahantango Formation
Confusion Hill medium-range outcrop #5
Amphibolite from Clear Creek Canyon, Colorado
Sand from Vista Point, Del Norte County, California
Rugose coral
Scleractinian coral
Ghaub Formation diamictite with Snowball Earth glacial dropstones
Rodeo Beach Cliff
Sand from Ocean Beach, San Francisco, California
Ostracode and gastropod body fossils, Tonoloway Formation
Folded Tonoloway, Looking South. 8-22-12
Calvert Formation, Scientist Cliffs, Maryland (#5 of 8)
Catoctin greenstone
Plant fossil: gymnosperm
Sedimentary Rocks Lab Sample V
Ex-aragonite seafloor cements
Stromatolites in driveway, Thunder Bay Ontario
Folded porphyritic green metavolcanic rock, St. Anthony, Newfoundland
Foram from La Isla Verde, Puerto Rico, 3155x
Tauz karst spring - the deepest underwater cave in Romania
Siccar Point, Scotland
NEW New WV 55 fold belt 3
Passage Creek in Flood I
Ripple marks in mudstone
Serpentine Marble, Plane Polars
Vulcano, Aeolian Islands, Italy
Skolithos
Graphite
Unknown Sedimentary Sample
Fossil Metasequoia and angiosperm
Anorthite, 3015x
Striped Rock Granite with fractured feldspars
Verdite
Plate breccia
Marine body fossils in Mississippian-aged Reynolds Limestone
Mt. Kidd, Kananaskis Trail, Alberta, Canada
Marble Breccia, Crossed Polars
Antiform in Mather Gorge Formation
Andesite with aligned feldspar phenocrysts, Little Walker Caldera, California
Laminated and faulted Tonoloway Formation
Rhyolite
Sand from Ocean City, Maryland
Physical Geology Mineral Lab Sample 10-2
Mineral Sample Set L
Conglomerate
Big kink fold in Foreknobs Formation, Rt. 50 west of Gore, Virginia
Ronas Hill Granite, Plane Polars
Stromatolite from Namibia
Floe Lake, Kootenay National Park, British Columbia, Canada
Grand Canyon from Pima Point
Natural Bridge, Canada 2
Paw Paw Tunnel, upstream exit
Argentinian folds
Strained Antietam Formation
Folds and Faults in Foreknobs, Bergton, Virginia
Sedimentary Rocks Lab Sample H
"Dunbar Marble": Mississippian limestone chock full of rugose corals
Migmatite exposed at Sea Point, South Africa
Ammonoids
Rounded cobble of intrusion breccia
Rubified quartz of the Swift Run Formation
Amygdules in Catoctin Formation
Goðafoss; upper gorge, Iceland.
Helen Lake stromatolites, Banff National Park, Alberta, Canada
Satinspar
Sand from the Hudson River at Stuyvesant, New York
Chinese Hat, Galapagos
Microbially induced sedimentary structures, Barberton
El Paso Arroyo
Hornblende schist
Graded bedding in the Martinsburg Formation
Physical Geology Minerals Lab Sample Set 5
Lewisian gneiss with cross-cutting dikes
Pyroxenite
Ignimbrite at Grind of the Navir
Kirkjufell, Snæfellsnes Peninsula, Iceland
Tauz karst spring - the deepest underwater cave in Romania (view from south)
Folded turbidites at Saligo Bay, Islay, Scotland
Conococheague Formation exposed near Mulberry Run, Virginia
(Annotated) laminated and faulted Tonoloway Formation
Amygdules in Catoctin Formation metabasalt
"Cub Sandstone" (Uppermost Martinsburg Formation), near Catherine Furnace, Virginia
Diptera tipulidae 2026
Polished green porphyritic metavolcanic from St. Anthony, Newfoundland
Pyroxene in Stillwater Complex Cumulate, Montana
Sodium-rich Plagioclase Feldspar at 1915x
Permian sedimentary rocks near the site of Hutton's Unconformity, Lochranza, Arran, Scotland
Sediment from Lake Ashi, Kanagawa Prefecture, Japan
Folded gneissic banding, Billy Goat Trail, Maryland
Bermuda "Pink Sand" Foram, 2495x
Little A Glacier and Boundary Glacier, near Icefield Centre, Icefields Parkway, Jasper National Park, Alberta
Suite of four metamorphic index minerals
Proterozoic basement rock, Clear Creek Canyon, Colorado
Staurolite, Plane Polars
Dickey Ridge Overlook, Shenandoah National Park
Lincolnshire limestone, plane polars
Turbidites at Garrapata Beach, Big Sur, California
Highland County, VA Mafic Intrusion
Folded and Cleaved Martinsburg Slate, Page County, Virginia
En echelon tension gashes in quartz arenite
Boninite, New Calendonia
Martinsburg Formation, South Page Valley Road, Page County, Virginia
Difficult Run Migmatite 2
Diptera tipulidae 2227a
Polysynethic Twinning in Albite, Crossed Polars
Anticline in Veach Gap
Laminated Shale, Crossed Polars
Luray, Virginia quadrangle
Differential weathering in Nolichucky Formation
Trilobite Elrathia kingi
Metamorphic Rocks Lab Sample R
Sahara Desert sand
Rock Wall, Fetlar, Shetland
Fossil Acer dacycarpoides
Boudinaged tourmalines in Setters Schist, Maryland
Breccia boulder
Cloudina
Pillow basalts, Snæfellsnes Peninsula, Iceland
Muscovite
Physical Geology Minerals Lab Sample 2a
The Alex Bay Cut
Unknown Sedimentary Rock Sample
Basalt
Physical Geology Minerals Lab Sample 4
Littleton Formation schist from Mt. Washington, New Hampshire
Second Generation Quartz, Billy Goat Trail
Volcanic bomb
Coarse ooids
Fault breccia
Cushendun Conglomerate of the Cross Slieve Group, Cushendun, Northern Ireland
Chert Nodule in Ulster White Limestone ("The Chalk")
Dismembered, folded sandstone body from Corridor H, WV, crossed polars
Storm deposit in glauconitic sandstone
Portrush: hornfels (contact metamorphosed Lias shale) above Portrush gabbroic/doleritic sill
Plagioclase feldspar
Weathered Sandstone
Clastic dike within Castner Marble, Franklin Mountains, Texas
Purslane Formation Sandstone, Sideling Hill, Maryland
Cribratina duo
Talc
Shale
Boxwork on sandstone
Confusion Hill detail shot 2
"Breccia Wall," Antietam Formation, SE Boyce quadrangle, Virginia
Laminated Shale, Plane Polars
Bryozoan Archimedes
Rockwell Formation diamictite
Biotite Gneiss, Plane Polars
Diopside with red and white calcite
Weverton Formation at Outdoor Lab (Biscuit Mountain)
Massanutten Sandstone with trace fossils
Swift Dam anticline, looking west
Smoo Cave
Basaltic Pumice
Leesburg Conglomerate
Sedimentary Rocks Lab Sample C
Sediment from Dunbar, Scotland
Campus Andesite
Cairn Formation, Bow River Parkway, Banff National Park, Alberta, Canada
Enstatite
Physical Geology Mineral Lab Sample 10-11
WV Rt 55 Whipcove Anticline
Martinsburg Formation crinoids and brachiopods
Ash and lapilli from Kilbourne Hole
S3 spherulite layer in Mapepe Formation, Fig Tree Group, Barberton Greenstone Belt
Seneca Rocks
Dyed agate
Metamorphic Rocks Lab Sample S
Mazon Creek paleoplant
Sediment from the Leiðarendi Lava Tube, Iceland
Devonian coral
Buda Formation Fold
Encrinal Limestone, Crossed Polars
Sedimentary Rocks Lab Sample D
Dolomite
Volcaniclastics from the volcanic highlands near Grímsstaðir, Iceland
Crinoid columnal horizon
Kink bands in schist of the Laurel Formation, Rock Creek Shear Zone, Washington, D.C.
Sandstone and conglomerate
Spherulitic felsite, Shetland
Beartooth Andesite
"Fubarite" Outcrop - Sheep Mountain Anticline, Wyoming
Apatite
Dike contact exposed at Kildonan, Arran, Scotland
Leggetts Gap-Section 4
Stac Fada member of the Clachtoll Formation
Sediment from L'Anse aux Meadows, Newfoundland
North Attleboro PetSmart Outcrop - View 1
Hutton's Unconformity, Arran
Looking West - Sheep Mountain Anticline, Wyoming
Silurian-aged mudcracks
Pyritized plant tissue from the Rockwell Formation diamictite
Mylonite (felsic) from the Dover Fault, Newfoundland
Passage Creek NOT in flood
Veach Gap Anticline 2
Olivine in Gabbro, Crossed Polars
West Boothbay Harbor, Maine
Millboro Formation shale, Route 33 near Brandywine, West Virginia
Grind of the Navir
Miette gritstone with scour incision and mudchip rip-up clast-rich strata, Banff National Park, Alberta, Canada
Waterton Park - Crandell Mountain
Paradise road North side east of bridge shot 5
Miette Group graded bedding
Epidosite, Crossed Polars
Huckleberry Ridge Tuff, Madison Valley, Montana
Coelacanth tail fossil from the Solite Quarry, Dan River Basin, Virginia
Cape Granite exposed at Sea Point, South Africa
Flood deposits on Evan Thomas Creek, Kananaskis Trail, Alberta
Boudinaged sandstone layer within Miette Group slate, Banff National Park, Alberta, Canada
"Mississippi Valley" Outcrop - Sheep Mountain Anticline, Wyoming
Igneous Rocks Lab Sample I-A
Chesapecten nefrens
Lamprophyre dikes on the Billy Goat Trail
Sediment from Montara State Park, California
Basal Cambrian burrows
Athabasca Glacier
Alluvial gravel, Bow River, Banff
Syenite
Plumose structure, route 55, West Virginia
Migmatite exposed at Sea Point, South Africa
Physical Geology Mineral Lab Sample 10-4
Enstatite, Crossed Polars
Rockwell Formation diamictite
Metamorphic Rocks Lab Sample L, another side view
Selenite
Kyanite quartzite, crossed polars
Corundum
Rockwell Formation diamictite
Microfiber in Chesapeake Bay Plankton Tow, 2940x
Fuchsite
Sediment from Crescent Bar, Washington
Tilted glacial outwash sediments
Edinburg Formation, showing Alleghanian cleavage, near Cedarville, Virginia
Bergton Thrust Fault - Greenland Gap Group
Biotite Granite, Crossed Polars
Port Askaig Diamictite, Islay, Scotland
Sphalerite
Helen Lake stromatolites, Banff National Park, Alberta, Canada
Thoroughfare Gap Weverton Formation, upper section
Shark Bay
Anorthite
Trace fossils in the Millboro Formation, Corridor H, West Virginia
Lower Rainbow Canyon, Death Valley National Park
Coccoliths and a Coccolithosphere in Classroom Chalk, 5245x
Sediment from Fortune Head, Burin Peninsula, Newfoundland
Rutile needles on biotite from Tioga Bentonite
Walker Top mylonite
Diopside
Conophyton
Graded bedding in the Martinsburg Formation
Olivine at 3095x
Facies change across the Cathedral Escarpment, Field, British Columbia, Canada
Plaid Twinning in Microcline, Plane Polars
A second view of the felsite intrusion
Chippokes Plantation 1
Column at YMCA Camp Harrison, North Carolina
Quartzite, crossed polars
Native copper in Catoctin Formation metabasalt
Garnet schist
Grand Canyon View from Desert View Outlook
Kyanite quartzite
Lapilli from Mt. Etna
Fossil Seed Fern
Passage Creek: not in flood
Calcite
Soft sediment deformation variety pack
L-tectonite, side view
Tuff, plane polars
Hogbacks - Sheep Mountain Anticline, Wyoming
New Market to Lincolnshire to Edinburg Limestones - Strasburg, VA
Corona Heights Fault, San Francisco
Rugose coral calyces
Syncline Tension Gashes, Corridor H
Harpers Formation, Harpers Ferry, West Virginia
Brecciated Antietam Formation
Rugose corals
Drumadoon Sill
Desiccation cracks in the Silurian Tonoloway Formation
Cristo Rey: Buda Formation - overturned syncline
Old Red Sandstone, cliff at Dunbar, Scotland
Microbially-induced sedimentary structures in Stoer Group, Clachtoll, Scotland
Gabbro, Fetlar, Shetland
Sediment from Ocean Beach, San Francisco, California at 3125x
Gastropod shells
Felsic spherulite from Shetland
Detail of Western Fold in the Large Rt 279 Outcrop, Bennington, Vermont, USA
Bishop Tuff
Sedimentary Rocks Lab Sample R
Fossil Fish
Microfiber Pollution in Sediment from Sandy Cove, Newfoundland and Labrador
Cross-bedding in Massanutten Sandstone
Cascade Canyon
Paleoproterozoic gneiss, Clear Creek Canyon, Colorado
Porphyritic vesicular basalt from Ka Lae, Hawaii
Serpentinite breccia, North Anatolian Fault, Turkey
Devonian Hampshire and lower Mississippian Rockwell Formations roadcut on Corridor H, West Virginia
Earthquake Lake Scarp - Hebgen Lake Road, Montana
Contact between volcanics and sedimentary host rocks, Kinkell Ness, Scotland
Harpers Formation, Harpers Ferry, West Virginia
Cathedral Peak granodiorite
Volcanic Breccia, Crossed Polars
Boudin mouth and neck, Lewisian gneiss exposed east of Durness, Scotland
Sand from Bromley Brook, Manchester, Vermont
Terminal Ediacaran trace fossils
Portrush: hornfels (contact metamorphosed Lias shale) above Portrush gabbroic/doleritic sill
Euhedral calcite in Precambrian-aged basalt cobble
Nlaka Hill S1 2013-05-30
Striarca fossil
Ooids and rip-up clasts
LS tectonite, Phoenix Mountains, Arizona
Sand from Al Madam, Sharjah, UAE
Brachiopod fauna of the Nealmont Formation, Germany Valley, WVA
Helderberg limestone, Corridor H, West Virginia
The Golden Gate
Coleoptera 1030b
Graptolites, Dob's Linn, Scotland
Diptera tipulidae 512
Bishop Tuff F2 Ashfall
Sediment from the Great Rift Valley, Kenya
Confusion Hill overview GigaPan #1
Grand Canyon from Lipan Point
Foreknobs sandstone, plane polars
Shoshone Canyon - Cody, Wyoming
Debris flow, Yoho National Park, British Columbia, Canada
Shelly Sand from Portrush, Northern Ireland
Dirty terminus of the Athabasca Glacier
Southern Franklin Mountains
Rutile
Echinoid hemicidaris
Blastoid, side view
Igneous Rocks Lab Sample M
Stutfield Glacier, Jasper National Park, Alberta, Canada
El Capitan Reef, West Side
Pillow basalts at Kirby Cove
Microcline
Shenandoah Valley Overlook, Shenandoah National Park
Chippewa Falls (Detail)
Aquia Creek Sandstone
Lunar Breccia Sample 65015, Plane Polars
El Paso Texas and Cd. Juarez Mexico
Echinoid hemicidaris
Sedimentary Rocks Lab Sample S
Hole In The Rock, Papago Park, Tempe, Arizona
Fossil display at the Virginia Department of Geology and Mineral Resources
Table Mountain Sandstone, South Africa
Igneous Rocks Lab Sample D
Patagonian turbidites, Chile
Stromatolites, Helena Formation, near Crypt Lake, Waterton Lakes National Park, Alberta
1959 Earthquake slide and Lake in Montana
Tombolo at St. Ninian's Isle, Shetland Islands, Scotland
Annotated folded Foreknobs, Gore, Virginia
Cristo Rey Mountain
Teredo, side view
Detail of Eastern Fold in the Large Rt 279 Outcrop, Bennington, Vermont, USA
West Face - Sheep Mountain Anticline, Wyoming
Portrush Sill, view #1
Port Askaig Diamictite, Islay, Scotland
Diatomaceous earth
Blueschist (medium-grained)
Calvert Formation, Scientists' Cliffs, Maryland (#3 of 8)
Folded metamorphic rocks exposed along the shore of Cabbage Island, Maine
Ball and pillow load-sag structures in Graafwater Formation
Stockdale Kimberlite
Mauch Chunk Formation, Corridor H, West Virginia
Brecciated Antietam Formation
Mylonite at Corrie Sands, Islay, Scotland
Ammonite in hornfels
Green ignimbrite overlying basalt, Berufjörður, Iceland
Oriskany sandstone, plane polars
Tuscarora Formation quartzite, showing iron oxide staining
One nautiloid, one ammonoid
Martinsburg Formation, South Page Valley Road, Page County, Virginia
Serpentinite with chrysotile hat
Trimmers Rock
Kilbourne Hole, detail C
Westward Facing Quarry Wall (Wide View), Corridor H
Crossbedded Red Sandstone with Lichen
McKenzie Pass Lava Flow
Volcaniclastic breccia from Mount St. Helens
Slab of Massanutten Sandstone
Passage Creek in Flood II
Sediment from Moss Landing Beach, California
Slate, Crossed Polars
Conemaugh Group, Corridor H
Encrinite
Quartz: variations on a theme
Folds in Edinburg Formation, Opequon Creek, Clarke County, Virginia
LiDAR view of the Harpers Ferry region, West Virginia / Maryland / Virginia
Garnetiferous metagraywacke, Rock Creek Shear Zone, Washington, DC
Evan Thomas Creek, showing flood deposits and erosion
Anticline in Edinburg Formation, Opequon Creek, Clarke County, Virginia
Sedimentary Rocks Lab Sample B
Trilobite Elrathia kingi
Strained trilobite
Brecciated chert, Corona Heights Fault, San Francisco, California
Metatuff from the Catoctin Formation, South Mountain, Maryland
Allegheny Formation chert, plane polars
El Capitan, West Texas
Snowball Earth Educational Rock Sample Suite PFH-1
Microbially-induced sedimentary structures in Stoer Group siliciclastics, Clachtoll, North-West Highlands, Scotland
Marine Eugene Formation
West Lobe Quarry, West Virginia
Helderberg Formation chert, crossed polars
Muscovite, Crossed Polars
Physical Geology Mineral Lab Sample 10-1
Sterling, Virginia-Maryland quadrangle
Cristo Rey: Buda Formation - folds and faults
Milldale Antietam Breccia
Urchin Spine from Playa Rocosa De Piñones, Puerto Rico, at 3555x
Folded turbidites of the Smaull Greywacke, Saligo Bay, Islay, Scotland
Bliss Sandstone
Coleoptera 1030a
Cleavage refraction in Chancellor slate, Yoho National Park, British Columbia, Canada
Talc tremolite schist, plane polars
Jackson, Michigan quadrangle
Physical Geology Mineral Lab, Sample Set 1
Faulted Massanutten Formation sandstone at the Talking Headwall
Sheridan College dinosaur quarry
Caliche from the Hueco Formation, West Texas
Sediment from Kirby Cove, Marin County, CA
Channel forms and clinoforms in the Hampshire Formation
Calamites
Snowball Earth Educational Rock Sample Suite TS-3
Grand Teton range 1
Diabeg Formation, Torridonian Group, North-West Highlands, Scotland
Ozark Cave 2
Bishop Tuff
Tonoloway ostracode bed
Pseudotachylyte from Vredefort, with acrylic paint coat.
Port Askaig Diamictite, Islay, Scotland
Barite
Spiral graptolite
Sediment from the St. Ninian's Isle Tombolo, Scotland
Portrush Sill, view #3
Fauquier Formation limestone, crossed polars
Martinsburg Formation
Carbonatite dikes, Yoho National Park, British Columbia, Canada
Chippewa Falls (Wide)
Folded turbidites at Saligo Bay, Islay, Scotland
Outcrop of Weverton Formation quartzite atop Biscuit Mountain, Pond Mountains (South of Thoroughfare Gap), Virginia
Beach sand from the Puna Coast, Big Island, Hawaii
Sediment from Squantum Head, Quincy, Massachusetts
Massanutten Sandstone exposed on Fort Valley Road
North Attleboro PetSmart Outcrop - View 2
McDonald Creek, Glacier National Park
Paleoproterozoic gneiss from Clear Creek Canyon, Colorado
Kilbourne Hole, detail D
Laminated Rockwell Formation diamictite
Watern Cove
Cristo Rey: Mesilla Valley Formation - folds
Fossil Sphenophyllum
Fossil Stigmaria
Mazon Creek Paleoplant
Mauch Chunk Formation, showing Reynolds Limestone Member
Annularia radiata
Walls Boundary Fault, Shetland
Allegheny Formation siltstone, crossed polars
Diatomaceous earth
Tephra Blanket, Kilbourne Hole
Helen Lake Stromatolites 3
Fossil snails in Reynolds Limestone
Oolitic limestone
Amygdules in Catoctin Formation
Diptera tipulidae 007a
Igneous Rocks Lab Sample A
Palmyra, New York quadrangle
Fossil Alethopteris decurrens
Holey Chesapecten jeffersonius
Graptolites, sp. Tetragraptus
Fauquier Formation Rock Wall
Miette Group Outcrop Ellipsoid
Sykesville Formation, Chain Bridge Flats, DC
South lateral moraine, Athabasca Glacier (end-on view)
Hampshire Formation siderite concretion, plane polars
Gibbsite in Bauxite
S2 meteorite impact tsunami deposit, Barberton Greenstone Belt
Blastoid, side view
Chromite olivine cumulate, Stillwater Complex, Montana
Graptolites
Faulted strata
Ammonites in contact-metamorphosed Lias, Portrush, Northern Ireland
Maidens gneiss from the Goochland Terrane
Allegheny Formation chert, crossed polars
Cruziana trace fossils
Graded bed in Martinsburg Formation
Sand from the Strait of Gibraltar
Evaporite texture in Tonoloway Formation
Hutton's Unconformity on the Isle of Arran
Catoctin metabasalt at Point of Rocks, Maryland
Zoophycos
Crinoid fossil
Sediment from Loch Assynt, NW Highlands, Scotland
Tanytrachelos, from the Solite Quarry in the Dan River Basin, Virginia
New Market limestone, plane polars
Folded Brallier Shale, south side of NEW New WV 55
Pteridinium from Farm Aar
Massanutten sandstone slab with trace fossils
Parallel Roads of Glen Roy
Naturebaths, Lake Myvatn region
Sediment from Kinkell Ness, Scotland
Rocky Gap Run, Lake Habeeb, Maryland
Pyrolusite
Pisolites in Tansil Formation limestone, Whites City, New Mexico
Solution seam sample
Mahantango limestone, plane polars
Sedimentary and diagenetic features in the Conemaugh Formation, Corridor H, West Virginia
Pegmatite, Red Bluff Granite
Southward Facing Quarry Wall (Close Up), Corridor H
Smaull greywacke turbidites exposed south of Saligo Bay, Islay, Scotland
Gros Ventre Landslide - Kelly, Montana
Gravel deposits of the Salmon River, near Riggins, Idaho
Cottonwood Creek; Boise, Idaho
View toward Barite Valley
Klingle Valley metaconglomerate, Laurel Formation, Rock Creek Shear Zone, Washington, DC
Bar 3 cross section, near Wilson Creek, Washington
Helen Lake stromatolites, Banff National Park, Alberta, Canada
Barite horizon, Mapepe Formation of the Fig Tree Group
Caliche from the Hueco Formation, West Texas
Trimmers Rock Bouma sequences
Mammoth Cave, Kentucky quadrangle
Tuscarora sandstone, plane polars
Wavellite on quartzite
Chlorite porphyroblasts in Popes Head Formation schist
Foreset beds in gravel dune complex near Soap Lake
Conglomerate as countertop, on display in Berryville, Virginia
Conglomerate with Calcite Cement and Hematite Cement, Crossed Polars
Migmatite exposed at Sea Point, South Africa
Lamprophyre, Plane Polars
Calvert Formation, Scientists' Cliffs, Maryland (#8 of 8)
Sacagawea Peak from bioherms near the Thunderer, Bridger Range, Montana
White Mountain escarpment, Wyoming
Fold
Diptera 2043a
Weathered basalt near West Light, Rathlin Island, Northern Ireland, U.K.
Carbonized fern
Sedimentary Rocks Lab Sample Y
Pyroxene phenocrysts from Mt. Vesuvius
Fluorite
Bermuda "Pink Sand" Foram, 2580x
Mariopteris
Crepidula
Foreknobs Formation- Hunting Ridge 2
Sillimanite in Sillimanite-Garnet Gneiss, Crossed Polars
Sedimentary Rocks Lab Sample K
Tourmaline
Scourie dike, Achmelvich Beach
Echinoid hemicidaris
Small folds in the Foreknobs Formation, Rt. 50 west of Gore, Virginia
Gneiss
Cristo Rey: Mesilla Valley Formation - contact with Campus Andesite
Exposure of Catoctin Metabasalt at Point of Rocks, Maryland
Coal, Conemaugh Formation, Corridor H, West Virginia
Hampshire Formation redbeds, from a higher perspective
Dike in diabase
Peridotite from the Josephine Ophiolite
Unakite, Crossed Polars
Microbially induced sedimentary structures, Barberton
Granitoid, Robertson River Igneous Suite
Graded bed in Martinsburg Formation turbidites, Peach Orchard Gap, Virginia
Contact between Fauquier Formation marble and Catoctin Formation greenstone, near Lime Kiln Road, Virginia
Potassium feldspar
Fucoid Beds, North-West Highlands, Scotland
Anticline/Syncline Pair, Patterson Creek Mountain Anticline, WV55
Talc, Plane Polars
Pteridinium at Aarhauser
Syncline Fold, Corridor H
Mechum River Formation meta-diamictite
Till
Cleavage in folded turbidites at Saligo Bay, Islay, Scotland.
Folded banded iron formation
Tonalite with cross-cutting veins, DC cobblestone
Granite vein cutting Paleoproterozoic gneiss, Clear Creek Canyon, CO
Angular Unconformity, west of El Paso, Texas
Snowball Earth Educational Rock Sample Suite PFH-2
Lamprophyre dikes at Mather Gorge, Great Falls, Virginia
Sedimentary Rocks Lab Sample Q
S3 spherulite, Fig Tree Group, Barberton Greenstone Belt
Brain coral
"Bermuda Pink Sand" with Forams
Metamorphic Rocks Lab Sample P1 (left) and P2 (right)
Helen Lake stromatolites, Banff National Park, Alberta, Canada
Sedimentary Rocks Lab Sample E
Metamorphic Rocks Lab Sample C
Diaphragmus brachiopod fossils from the Reynolds Limestone member of the Mauch Chunk Formation, Corridor H, West Virginia
Unknown Sedimentary Sample
Folded metamorphic rocks exposed on C&O Canal
Chapman's Mill, Thoroughfare Gap, Virginia
Ulster White Limestone ("The Chalk"), Northern Ireland
Hampshire Formation sandstone, crossed polars
Anticline/Syncline Patterson Creek Mountain Anticline WV55 BIG
Cornwallis' Cave
Sediment from Jenner, CA
Diptera tipulidae 1714a
Slag from Britain used as ballast and then as road cobble in DC
Ferruginous quartzite
Rift at Þingvellir, Iceland
Keyser limestone, crossed polars
Calcite precipitated on aquarium gravel
Cretaceous strata at Swift Dam
Confusion Hill detail shot 3
Pope's Head Formation showing cross bedding on the plane of foliation
Redfieldius
Volcanic arches at Dimmuborgir, near Lake Mývatn, Iceland
Murri Anticline and Oman Ophiolite
Sediment from Torres del Paine, Chile
Sediment from Clear Creek in Colorado
Sykesville Formation, Chain Bridge Flats, DC
Sediment from above the wrack line on Playalinda Beach, Merritt Island, Florida
Sediment from the Black Sea off the coast of Zatoka, Odessa Oblast, Ukraine
Garnet Mica Schist, Plane Polars
Sediment from South Ari Atoll, Republic of Maldives
Oolitic Limestone
Arkose, Cushendun
Sedimentary Structure?
Cirque Peak, Banff National Park, Alberta
Amazonite (Microcline)
Sykesville Formation, Chain Bridge Flats, DC
Sediment from Arches Provincial Park, Newfoundland and Labrador
Old Red Sandstone, headland at Dunbar, Scotland
Metamorphic Rocks Lab Sample K2, Side View
Granitic dikes in granite
Passage Creek in flood
Rock Gypsum, Crossed Polars
Lunar Basalt Sample 12002, Plane Polars
NEW new WV 55 west of Moorefield anticline
Cloudina graveyard
View SSW from Duncan Knob, George Washington National Forest, Virginia
Arctomys siltstone and shale, southeast of Cirque Peak, Banff National Park, Alberta, Canada
Sediment from Passage Creek, Fort Valley, Virginia
Diptera tipulidae 2380b
Diptera tipulidae 840
View over the Komati Valley
Extensional Shear Bands in Thin Section
Garnet
Conglomerate of Cerro Toro Formation, Chilean Patagonia
Metamorphic Rocks Lab Sample L, one side view
Devonian Shale (#1), South Branch of the Potomac River, West Virginia
Glacier on Mt. Stephen
Unakite, Plane Polars
Barrier Lake, Mt. Baldy, and the Kananaskis Valley
Rockwell Formation diamictite from Sideling Hill
Kaap Valley Pluton exposed along Queens River, Barberton Greenstone Belt, South Africa
"Chill and bake," Blackwaterfoot Beach, Arran, Scotland
Klamath Basin
Calcite
(Potential) accretionary lapilli in mudrock
Precambrian / Cambrian Unconformity, Ogofgolchfa
Giant's Causeway, Northern Ireland
Carters Grove, Eastern exposure
Chapman's Mill, Thoroughfare Gap, Virginia
Black Cretaceous Shales - Sheep Mountain Anticline, Wyoming
Alluvium and soil profiles
Anorthosite, Adirondack Mountains, New York
Cairn Formation, Bow River Parkway, Alberta
Folded gneiss from Clear Creek Canyon, Colorado
Sediment from the Choptank Formation, Zone 13
Beach cobbles at Dunbar, Scotland
Basalt, Crossed Polars
Igneous Rocks Lab Sample C
Stromatolites in Helena (Siyeh) Formation limestone from Alberta, Canada
Snowball Earth Educational Rock Sample Suite 22
Arthrophycus
Gigantoproductus giganteus fossils in Permian limestone, Arran, Scotland
Skolithos
Zoisite
Ocean jasper, Madagascar
Snowball Earth Educational Rock Sample Suite TS-12
Sub-Torridonian unconformity, North-West Highlands, Scotland
Sedimentary Structure?
Pipe Rock, North-West Highlands, Scotland
Kaolinite
Sediment from Ten Mile Dunes, Ft. Bragg, California
"Carbonatite?"
Migmatite
View across the Barite Valley
Gravel deposits on Adams Mill Road NW, Washington, DC
Striations in Eldon Formation, exposed near Athabasca Glacier.
Disaggregated Sediment from the Choptank Formation, Zone 13
Sand from the Atlantic Ocean at Kure Beach, North Carolina
Mudchip conglomerate w/ varying oxidation states
Mudcracks
Actinolite in Quartz
Martinsburg Formation exposed at Staunton, Virginia
Ostracode fossils in Tonoloway Formation
Granite, Wind River Canyon, Wyoming
Komatiitic ash (meteorite impact layer), Barberton Greenstone Belt, South Africa
North Palisade, California
New Market limestone, crossed polars
Slaughter Canyon, Guadalupe Mountains, New Mexico
Tilted, folded, intruded metamorphic rock, Clear Creek Canyon, Colorado
Microcline, 2940x
Fossil Pecopteris
Diorite, Plane Polars
Graptolite fossils in the Martinsburg Formation
Massanutten Sandstone
Bow Lake and Bow Glacier
Sacagawea Peak from the south, halfway along the ridge toward the Thunderer, Bridger Range, Montana
Microbially induced sedimentary structures and fluvial conglomerate, Barberton
Sand from LaParee Beach, Bretignolles-sur-Mer, France
Porphyritic Andesite, Plane Polars
Unnamed Syncline - Sheep Mountain Anticline, Wyoming
Archean/Cambrian nonconformity at Wind River Canyon, Wyoming
Ellipsoidal reduction spots in Welsh slate
Folds in Upper Conococheague
Mafic enclaves in the Kaap Valley Pluton, Barberton Greenstone Belt, South Africa
Unconformity near Portrush, Northern Ireland
Sand from Portrush, Northern Ireland
Calcite and [?] precipitated on gneiss used as aquarium decoration, face 1 of 3
Mudcracks from the Belt Supergroup
Rutile, Plane Polars
Orthoclase at 1825x
Another Column at YMCA Camp Harrison, North Carolina
Sedimentary Rocks Lab Sample O
Diptera tipulidae 043
Calvert Formation glauconite sand
Graptolites
Galena
Hanging Rock Anticline, east side
Sand from Ophir Beach, Oregon
Crossbedding preserved in Popes Head schist
Gabbro
Geologic Map of the Wind Gap Quadrangle, Northampton and Monroe Counties, Pennsylvania
Chancellor Group slate, Yoho National Park, British Columbia, Canada
Gneiss
Arkose, Plane Polars
Sediment from Beaverdam Creek, Virginia
Granite exposed along the shore of Cabbage Island, Maine
Helderberg Formation chert, plane polars
Mineral sample D
Folded calc-silicate
Great Unconformity, Wind River Canyon, Wyoming
Demopolis Chalk
Garnet schist
Hematite
Klingle Valley metaconglomerate, Laurel Formation, Rock Creek Shear Zone, Washington, DC
Catoctin Formation greenstone, Rockfish Gap, Virginia
Sediment from Big Rocky Run, Centreville, Virginia
Grudaidh Formation (Durness Group) w/ two vogesite sills and two faults
Sample D
Ennis, Montana quadrangle
Sedimentary Rocks Lab Sample A
Up-close, small-scale folding, Patterson Creek Mountain Anticline WV55
Coprolite
Ammonites in contact-metamorphosed Lias, Portrush, Northern Ireland
Sediment from Moormans River, Virginia
Fusulinid-rich sediment
Basalt Columns at Skinner Butte, Eugene, OR
Mahantango Formation oolite with intraclast
Porphyritic vesicular basalt from Mt. Vesuvius
Beryl
Serpentine, Crossed Polars
Sediment from Katsura River, Kyoto
Sediment from Biscuit Run, Virginia
Coal
Pisolith-rich Grainstone, Tansill Formation(?), Whites City, New Mexico
Ptygmatic folding in gneiss
Mars PSP_001984_1735
Gypsum variety Alabaster
Lincolnshire limestone, crossed polars
Confusion Hill medium-range outcrop #1
Sand from the Cache La Poudre River, Colorado
Concentric Diatom in Choptank Formation Zone 13, 4870x
Subhedral halite
"Sketchy Trails" Outcrop - Sheep Mountain Anticline, Wyoming
Grand Canyon 1
Lunar Sample 12002 Thin Section of Basalt, Crossed Polars
Kink banding in Eldon Formation carbonates, exposed on roche moutonee east of Athabasca Glacier
Giant's Causeway, Northern Ireland
Martinsburg Formation, South Page Valley Road, Page County, Virginia
Brachiopods in sandstone, Pennsylvania
Igneous Rocks Lab Sample I-B
Metamorphic Rocks Lab Sample O
Aquia Creek Sandstone (2)
Sediment from Satellite Beach, Florida
Paw Paw Tunnel, downstream exit
Ammonite showing ammonitic sutures
Scenic Overlook, Looking West, West Virginia
Serpentine
Funzie Conglomerate, Fetlar, Shetland, U.K.
Lower Martinsburg Formation outcrop at Funk Road and Route 11, south of Strasburg, Virginia
Dunite
Ammonites in contact-metamorphosed Lias, Portrush, Northern Ireland
Hampshire Formation strata
Giant's Causeway, Northern Ireland
Taconic Angular Unconformity near Catskill, NY
Pennsylvanian Alleghanian Formation
Pseudotachylyte
Igneous Rocks Lab Sample F
Gneiss and migmatite, Clear Creek Canyon, Colorado
Slickensides on slabs of Brallier Formation shale, Paw Paw Tunnel
Cross-bedding
Ronasvoe and Ronas Hill, Shetland
Pemaquid Point, Maine
Fossil Annularia
Bermuda "Pink Sand" Foram, 1825x
Soapstone
Felsite intrusion, Iceland
Komatiite
Cirque Peak, Banff National Park, Alberta
Fine Sediment from Canoa Beach, Ecuador
Chimney Rock - Front View
Lunar Sample 12005 Thin Section of Olivine Basalt, Crossed Polars
Serpulids
Gastropod duplex w/ people for scale
Conifer Cone
Foreknobs Formation - Baker section 4
Giant fusulinids
Sediment from Blackbird Caye, Turneffe Atoll, Belize
Augen gneiss, Transition Zone, Shetland
Margin of a Scourie dike (contact w/ host rock: Lewisian gneiss)
Mauch Chunk sandstone, plane polars
Unknown Sediment Sample
Serpulids
Peyto Lake, Banff National Park, Alberta, Canada
Feeder dike(s) of the Catoctin Formation, exposed at Little Devil's Stairs Overlook, Skyline Drive, Shenandoah National Park, Virginia
Rt. 50 cut, Mt. Pleasant Syncline, east limb lower section
Siliceous Oolite, Crossed Polars
"Diamond in the Rough" outcrop of Hampshire Formation, Corridor H, West Virginia
Anorthite, Crossed Polars
Barberton komatiites in outcrop
Bedding / cleavage relationships in Chancellor Group slates, Yoho National Park, British Columbia, Canada
Sediment from Playa Rocosa De Piñones, Puerto Rico
Mineral Sample J
Fluorite, 3555x
Pekisko Formation, Lac des Arcs, Alberta
Astrhelia palmata
Diabase sill/dike complex within Red Bluff Granite
Crazy Cat breccia
Bituminous coal
Ostracodes in Tonoloway Formation limestone
Trezona Formation Stromatolites
Arkose
Garnet-Rich Purple Sand, Pfeiffer Beach, Big Sur, CA
Mineral Sample I
"Casa del Snake" Outcrop - Sheep Mountain Anticline, Wyoming
Diptera tipulidae 931
Signal Knob Overlook, Shenandoah National Park
Massanutten sandstone slab with trace fossils (annotations only)
Trace fossils in green siltstone
Alethopteris
Recumbent anticline in the Edinburg Formation, Page County, Virginia
Kilbourne Hole, detail B
Walls Boundary Fault, Shetland
Hell Creek Nirvana K/T boundary
Skinner Butte Columns
Marble breccia
Whipcove Anticline
Meta-ignimbrite of the Catoctin Formation, near Linden, Virginia
Sediment from Corfu, Greece
Graywacke and tafoni weathering on sandstone, Ocean Beach, San Francisco, California
Tension gashes in Cambrian Bison Creek Formation, Jasper National Park, Alberta, Canada
Limestone quarry on Old Route 55, West Virginia
Bloomsburg Formation sandstone
Anthracite
Rounded cobble of Cuckold Formation conglomerate, St. John's, Newfoundland
Chalcopyrite
Carbonatite dikes cutting across Chancellor Group slate, Yoho National Park, British Columbia, Canada
Hornblende Sand Grain, 3265x
Permian red beds near Hutton's Unconformity, Lochranza, Arran
Hibriten Mylonite
Columnar stromatolite
Phyllite with garnet
Curly graptolites
Konnarock Formation rhythmites
Metamorphic Rocks Lab Sample N
Sediment from Andros Island, Bahamas, at low tide
Scoria
Panorama of Reynisfjara beach in Iceland
Crossbedding preserved in phyllite
Metamorphic Rocks Lab Sample E
Mirevalles Deposits
Metamorphic Rocks Lab Sample H
Rockwell Formation diamictite
Oriskany/Needmore Formations
Columbia pluton
Fluorite
Cross-cutting dikes in gabbroic host rock in Georgetown Intrusive Suite.
Grind of the Navir
Gabbro, Fetlar, Shetland
Huckleberry Ridge Tuff Angular Unconformity near Gardiner, Montana
Topaz
Rollup structures in dolomitic microbialaminite
Pine Butte, Montana
Conococheague Formation exposed near Mulberry Run, Virginia
Leopard Rock, Beartooth Highway
Amphibolite
Smithsonian Castle, Washington, DC
Cornwallis Cave, Yorktown Virginia
Plant fossils in the Allegheny Formation
Amphibolite from Great Falls, Maryland
Sediment from Buggs Creek, Annandale, VA
Weekeroo 03 - Bookshelf fractures and shear bands in Walter-Outalpa Shear Zone
Keyser Limestone
Rock Garden
Lewisian gneiss exposed near Durness
Folded turbidites of the Smaull Greywacke at Saligo Bay, Islay, Scotland.
Diptera tipulidae 638b
The Drowned Forest - Hebgen Lake, Montana
Fusulinid-bearing Hueco Limestone from West Texas
Helen Lake Stromatolite 4
Diptera tipulidae 846b
Sediment from Mill Creek, Fort Valley, Virginia, USA
Mount Baldy (Barrier Peak), Alberta
Waterfall Formation boulder
Diatoms on a Grain of Sand from Scientists' Cliffs, Chesapeake Bay, Maryland at 2800x
Volcanic arch at Dimmuborgir, near Lake Mývatn, Iceland
Calcite, 3095x
Point Bar
Sediment from Tangalle, Sri Lanka
Convolute bedding in Millboro Formation sandstone
Stylolite in Helderberg Group limestone, West Virginia
Overlook, YMCA Camp Harrison, North Carolina
Goðafoss; lower gorge, Iceland.
View west along the southern shore of northern Rathlin Island (from the Roonivoolin Trail)
Portrush: hornfels (contact metamorphosed Lias shale) above Portrush gabbroic/doleritic sill
Tourmaline Schist, Crossed Polars
Fossil
Flat pebble conglomerate, Gros Ventre Formation
Kyanite, 3175x
Sand from Miami, Florida
Brallier and Chemung Formations, new New Route 55, West Virginia
Chesapecten jeffersonius, state fossil of Virginia
Foram from La Isla Verde, Puerto Rico, 2850x
Lower Mississppian Rockwell Formation roadcut on Corridor H, West Virginia
Tilted, folded, intruded metamorphic rock, Clear Creek Canyon, Colorado
Accretion lapilli
Rockwell Formation diamictite, crossed polars
Fossils from the Rochester Shale
Sand from the Delaware River, Delaware
Salterella Grit, North-West Highlands, Scotland
Rockwell Formation diamictite
Snowball Earth Educational Rock Sample Suite 17
Rose Hill Formation / Tuscarora Formation contact
Sediment from Clear Creek, Colorado
Marine microfossils
Eocene-aged herring Knightia eoceana
View southwest across Church Bay, Rathlin Island, Northern Ireland
Fossils in Reynolds Limestone, Mauch Chunk Formation
Internal mold of a clam
Fossil Lepidodendron
Bryozoans in Madison Formation Limestone
Bloomsburg Formation sandstone
Stromatolite from Namibia
Sand from the Atlantic Ocean at Monte de Estoril, Portugal
Lunar Basalt Sample 12005, Plane Polars
Stac Fada member of the Clachtoll Formation
Sand Grain from Ocean Beach, San Francisco, California at 3955x
Zircon, 3875x
Nelsonite
Slumped boulder (serpentinite colluvium), Marshall's Beach, San Francisco
Graded bedding in the Martinsburg Formation
Anhydrite
Brachiopods and bivalve mollusks
Hutton's Unconformity, Arran, Scotland
Oxidation and reduction in Hampshire Formation sedimentary rock
Boudinage in Lewisian gneiss exposed near Durness
Pipe Rock, North-West Highlands, Scotland
Lava Lake, Montana
Mineral Grains from a Herkimer Diamond Mine
"Dunbar Marble": Mississippian limestone chock full of rugose corals
Meteorite: Seymchan Pallasite
Unknown Sedimentary Rock
Graphite Schist, Crossed Polars
Maidens Gneiss, Crossed Polars
Beach sand from Bell's Beach near Victoria, Australia
Foram from Port Charlotte, Islay, Scotland,at 2775x
Pink marble
Sediment from Suromar Rio, Naguabo, Puerto Rico
Siliceous Oolite, Plane Polars
Foram from St. Ninian's Tombolo, Scotland, 1915x
Frank Slide, Alberta, Canada
Graywacke, Crossed Polars
Swift Dam, Montana
Sand from The Bahamas