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calcite
(kal′sīt′)
noun
a soft, rhombohedral form of calcium carbonate, CaCO, found in marble, limestone, and chalk
Origin: < L calx (see calcium) + -ite
See calcite in American Heritage Dictionary 4
noun
A common crystalline form of natural calcium carbonate, CaCO3, that is the basic constituent of limestone, marble, and chalk. Also called calcspar.
Related Forms:
- cal·citˈic (-sĭtˈĭk) adjective
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