mineral
Orange Calcite
Calcium Carbonate (CaCO3)
Hardness of 3 on Mohs scale, vitreous to waxy luster, perfect rhombohedral cleavage, trigonal crystal system, characteristic peach-to-orange color.
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Physical properties
Hardness of 3 on Mohs scale, vitreous to waxy luster, perfect rhombohedral cleavage, trigonal crystal system, characteristic peach-to-orange color.
Formation & geological history
Formed in sedimentary, metamorphic, and igneous environments through chemical precipitation or hydrothermal deposition, often in limestone formations.
Uses & applications
Used primarily for decorative carving, lapidary projects, metaphysical crystal collections, and mineral specimens.
Geological facts
Calcite is famous for its double refraction property and easy reaction to weak acids (it fizzes with dilute hydrochloric acid).
Field identification & locations
Identified by its soft hardness (scratched by a copper coin or steel blade), rhombohedral cleavage planes, and effervescence with acid. Commonly found in Mexico, Brazil, and the USA.
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