Found at the top of eroded hill of similar color (W. NV). Nearby to chalk and selenite. Looks like it's made up of tiny crystals, but not sure if that's case. What
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Chalk: A biological limestone formed from shell debris
Found at the top of eroded hill of similar color (W. NV). Nearby to chalk and selenite. Looks like it's made up of tiny crystals, but not sure if that's case. What
Chalk | Sedimentary, Limestone, Calcium Carbonate | Britannica
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How is chalk made? - Quora
Chalk: A biological limestone formed from shell debris
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Science of Chalk - Discovery Express
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Found at the top of eroded hill of similar color (W. NV). Nearby to chalk and selenite. Looks like it's made up of tiny crystals, but not sure if that's case. What
Chalk: A biological limestone formed from shell debris
How to Recycle Old Chalk - HubPages
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Chalk - Wikipedia
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