Gem of the Day #2

   Posted by: dsheret759   in Uncategorized









Humphrey Bogart, Ingrid Bergman  were in what country? It is the same country where you will find this sample.  A carbonate mineral, one of the two common, naturally occurring, crystal forms of calcium carbonate, CaCO3 (the other form being the mineral calcite). It is formed by biological and physical processes, including precipitation from marine and freshwater environments.

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