mineral
Green Calcite
Calcium Carbonate (CaCO3)
Hardness: 3 on Mohs scale, Color: Light to dark green, Luster: Vitreous to pearly, Crystal Structure: Trigonal (rhombohedral cleavage), Specific Gravity: 2.71
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Physical properties
Hardness: 3 on Mohs scale, Color: Light to dark green, Luster: Vitreous to pearly, Crystal Structure: Trigonal (rhombohedral cleavage), Specific Gravity: 2.71
Formation & geological history
Formed in sedimentary, metamorphic, and hydrothermal environments through the precipitation of calcium carbonate from water solutions over millions of years.
Uses & applications
Used in ornamental carvings, decorative items, lapidary arts, and popular in crystal healing and metaphysical collections.
Geological facts
Calcite exhibits strong rhombohedral cleavage and often reacts with dilute hydrochloric acid by fizzing due to the release of carbon dioxide.
Field identification & locations
Easily identified by its softness (easily scratched with a coin or knife), perfect rhombohedral cleavage, and acid reactivity. Found worldwide, notably in Mexico, Peru, and the USA.
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