cal·cite  (kāl'sīt')  n. A common crystalline form of natural calcium carbonate, CaCO3, that is the basic constituent of limestone, marble, and chalk. Also called calcspar. cal·cit'ic (-sĭt'ĭk) adj. |
| calc·spar or calc-spar (kālk'spär') n. See calcite. [Partial translation of Swedish kalkspat : kalk, lime (from Old Swedish kalker, from Middle Low German kalk, from Latin calx, calc-, lime; see calx) + spat, spar (mineral).] |
