mineral
Orange Calcite (Polished Point)
Calcium carbonate (CaCO3)
AI-generated identification · may be incorrectMohs hardness 3, bright orange-to-yellow color, vitreous to waxy luster, rhombohedral cleavage, and trigonal crystal system.
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Physical properties
Mohs hardness 3, bright orange-to-yellow color, vitreous to waxy luster, rhombohedral cleavage, and trigonal crystal system.
Formation & geological history
Formed through sedimentary chemical precipitation or hydrothermal deposition in fractures, caves, and limestone environments.
Uses & applications
Commonly carved and polished for ornamental carvings, metaphysical crystals, jewelry accents, and industrial chemical sources.
Geological facts
Calcite readily effervesces in weak hydrochloric acid and exhibits high birefringence, often producing double refraction.
Field identification & locations
Identified by its softness (easily scratched by a copper coin or knife) and acid reactivity; major deposits occur in Mexico, the USA, and China.
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