calcite Calcispongiae • calcitestaceous · · · Info · Definitions · Characters · · calcite · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C t latin small letter t U+0074