By: magic-gigapans
Image: Callan Bentley, Mid-Atlantic Geo-Image Collection
License: Creative Commons Non Commercial ⧉

Uploaded: 6 May 2020
Last Updated: 5 Jun 2020

218 megapixels
17,336 x 12,556 pixels
57.8 in X 41.9 in at 300dpi
4,066 pixels per inch

This sample is of nice structural interest. It was a shaly limestone, but then it got squeezed. Foliation developed at an angle to bedding, meaning that technically the rock now bears slaty cleavage. It's still a limestone, compositionally, but the well-developed foliation means that it's texturally a slate. Sampling location unknown. From the GMU teaching collection. Sample measures 6.5 cm wide by 5.6 cm tall (on the face that is in focus in this image).