a very widely distributed crystalline form of calcium carbonate, CaCO3, found as limestone, chalk and marble
a doubly refracting mineral used in the manufacture of polarizing prisms It is uniaxial negative and in the trigonal diversion of the hexagonal system of crystals Its indexes are epsilon =1 486, omega =1 658; its hardness is 3 on the Mohr scale and specific gravity 2 711 Canada balsam see balsam, Canada
It is rhombohedral in its crystallization, and thus distinguished from aragonite
Most common form of natural calcium carbonate (CaCO3), a widely distributed mineral known for the beautiful development and great variety of its crystals. It occurs in stalagmites and stalactites and forms the structure of coral reefs. Calcite is the most important mineral in limestones and marbles used in the building, steel, chemical, and glass industries. Transparent crystals are called Iceland spar
The common (trigonal) crystal form of calcium carbonate [CaCO3], typically occurring in caves as massive or finely crystalline speleothems (qv) or as larger crystal forms
A soft, usually colorless to white mineral distinguished by a rapid bubbling or fizzing reaction with dilute hydrochloric acid It is the major component of sea shells and coral skeletons and often occurs as well-formed, glassy to dull, blocky crystals
a very widely distributed crystalline form of calcium carbonate, CaCO{3}, found as limestone, chalk and marble
Calcium carbonate, CaCo3, with hexagonal crystalization This mineral is found in the form of limestone, chalk and marble and is the basic mineral from which many formations, including stalagmites and stalactites, are made
A common rock forming mineral of calcium carbonate (CaCO3), found primarily in limestones but also commonly forming a diagenetic cement in many other rock types and as a gangue mineral in many ore deposits