By: shelley-jaye
Image: Credit: Robin Rohrback, Mid-Atlantic Geo-Image Collection (M.A.G.I.C.) on GigaPan. CC BY Attribution 3.0 ⧉
License: Creative Commons Attribution ⧉

Uploaded: 7 Jan 2020
Last Updated: 15 Jan 2020

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All of these samples are of the mineral calcite. Calcite is typically clear to white to yellow in color and displays a characteristic rhombohedral cleavage. All calcite will readily effervesce in dilute hydrochloric acid.