mineral
White Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness of 3 on Mohs scale, typically white or colorless, vitreous to pearly luster, rhombohedral crystal system, and perfect three-directional cleavage.
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Physical properties
Hardness of 3 on Mohs scale, typically white or colorless, vitreous to pearly luster, rhombohedral crystal system, and perfect three-directional cleavage.
Formation & geological history
Formed through the precipitation of calcium carbonate from aqueous solutions or metamorphism of limestone, spanning various geological ages.
Uses & applications
Widely used in construction materials, cement production, agriculture for soil conditioning, and as a popular mineral specimen for collectors.
Geological facts
Calcite exhibits strong double refraction (birefringence) when placed over printed text and effervesces vigorously in weak hydrochloric acid.
Field identification & locations
Easily identified by its characteristic rhombohedral cleavage, low hardness, and acid reaction; found globally in sedimentary, metamorphic, and igneous environments.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous