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Aragonite :: Aragonite (n.) A mineral identical in composition with calcite or carbonate of lime, but differing from it in its crystalline form and some of its physical characters..

Marble :: Marble (n.) A massive, compact limestone; a variety of calcite, capable of being polished and used for architectural and ornamental purposes. The color varies from white to black, being sometimes yellow, red, and green, and frequently beautifully veined or clouded. The name is also given to other rocks of like use and appearance, as serpentine or verd antique marble, and less properly to polished porphyry, granite, etc..

Calc-spar :: Calc-spar (n.) Same as Calcite.

Septarium :: Septarium (n.) A flattened concretionary nodule, usually of limestone, intersected within by cracks which are often filled with calcite, barite, or other minerals..

Argentine :: Argentine (n.) A siliceous variety of calcite, or carbonate of lime, having a silvery-white, pearly luster, and a waving or curved lamellar structure..

Dimorphism :: Dimorphism (n.) Crystallization in two independent forms of the same chemical compound, as of calcium carbonate as calcite and aragonite..

Aphrite :: Aphrite (n.) See under Calcite.

Ferrocalcite :: Ferrocalcite (n.) Limestone containing a large percentage of iron carbonate, and hence turning brown on exposure..

Veinstone :: Veinstone (n.) The nonmetalliferous mineral or rock material which accompanies the ores in a vein, as quartz, calcite, barite, fluor spar, etc.; -- called also veinstuff..

Calciferous :: Calciferous (a.) Bearing, producing, or containing calcite, or carbonate of lime..

Dimorph :: Dimorph (n.) Either one of the two forms of a dimorphous substance; as, calcite and aragonite are dimorphs..

Stinkweed :: Stinkstone (n.) One of the varieties of calcite, barite, and feldspar, which emit a fetid odor on being struck; -- called also swinestone..

Allomorph :: Allomorph (n.) Any one of two or more distinct crystalline forms of the same substance; or the substance having such forms; -- as, carbonate of lime occurs in the allomorphs calcite and aragonite..

Pisolite :: Pisolite (n.) A variety of calcite, or calcium carbonate, consisting of aggregated globular concretions about the size of a pea; -- called also peastone, peagrit..

Amygdaloid :: Amygdaloid (n.) A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava..

Calc-tufa :: Calc-tufa (n.) See under Calcite.

Spar :: Spar (n.) An old name for a nonmetallic mineral, usually cleavable and somewhat lustrous; as, calc spar, or calcite, fluor spar, etc. It was especially used in the case of the gangue minerals of a metalliferous vein..

Paramorph :: Paramorph (n.) A kind of pseudomorph, in which there has been a change of physical characters without alteration of chemical composition, as the change of aragonite to calcite..

Baryto-calcite :: Baryto-calcite (n.) A mineral of a white or gray color, occurring massive or crystallized. It is a compound of the carbonates of barium and calcium..

Calc-sinter :: Calc-sinter (n.) See under Calcite.

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