Origin and occurrence of calcite

Calcite is widely distributed in nature.


Extensive limestone beds are often deposited in shallow seas or lakes.


Groundwater can dissolve limestone or form calcite again, such as stalactite, stalagmite, limestone, etc. Groundwater active in soil often forms calcite nodules along a certain horizontal plane near the diving surface. Geologists are used to call calcareous nodules.


Ore-bearing or non-ore-bearing calcite veins are often formed in hydrothermal activities. In crystal holes, there are often good crystals.


Calcite often accounts for about 80% of the carbonates formed by magmatism.


In addition, calcite is also used as the cement of clastic sedimentary rocks, and minerals after alteration of basic magmatic rocks participate in various rocks. Because of groundwater activity, calcite veins are often filled in the fissures of various rocks.


In regional metamorphism or contact metamorphism, the calcite in the limestone formed by sedimentation often recrystallizes to form a relatively coarse-grained aggregate of calcite, marble.