
mineral
Calcite Geode
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness of 3 on the Mohs scale, white to clear color, vitreous to pearly luster, and rhombohedral crystal cleavage.
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Physical properties
Hardness of 3 on the Mohs scale, white to clear color, vitreous to pearly luster, and rhombohedral crystal cleavage.
Formation & geological history
Formed through the precipitation of calcium carbonate from mineral-rich aqueous solutions within cavities of host rocks.
Uses & applications
Used in educational collections, ornamental displays, and industrial lime production.
Geological facts
Calcite exhibits strong double refraction, splitting light into two separate rays when viewed through clear crystals.
Field identification & locations
Identified by its distinctive rhombohedral cleavage and immediate effervescence when tested with dilute hydrochloric acid.