When looking at calcite under a microscope, a scientist would immediately recognize the crystalline form of calcium carbonate by its rhombohedral appearance. That is, calcite is shaped like a ...
Our friend Derek invited PaleoCris, Ashley, and myself out to a couple of cool sites he hunts for druzy quartz crystals and ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The Texas Gulf Sulphur Company sent ...
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