Thesaurus: calcite

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1. n. Calcium carbonate, or carbonate of lime. It is rhombohedral in its crystallization, and thus distinguished from aragonite. It includes common limestone, chalk, and marble. Called also calc-spar and calcareous spar.
2. n. a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone
3. Calcium carbonate, or carbonate of lime. It is rhombohedral in its crystallization, and thus distinguished from aragonite. It includes common limestone, chalk, and marble. Called also calc-spar and calcareous spar. Note: Argentine is a pearly lamellar variety; aphrite is foliated or chalklike; dogtooth spar, a form in acute rhombohedral or scalenohedral crystals; calc-sinter and calc-tufa are lose or porous varieties formed in caverns or wet grounds from calcareous deposits; agaric mineral is a soft, white friable variety of similar origin; stalaclite and stalagmite are varieties formed from the drillings in caverns. Iceland spar is a transparent variety, exhibiting the strong double refraction of the species, and hence is called doubly refracting spar.
4. Calcium carbonate, or carbonate of lime. It is rhombohedral inits crystallization, and thus distinguished from aragonite. Itincludes common limestone, chalk, and marble. Called also calc-sparand calcareous spar.
5. n:100 n. a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone