mineral
Aragonite
Aragonite (CaCO3)
AI-generated identification · may be incorrectMohs hardness of 3.5 to 4, white to yellow or brown color, vitreous to resinous luster, orthorhombic crystal system, and distinct cleavage.
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Physical properties
Mohs hardness of 3.5 to 4, white to yellow or brown color, vitreous to resinous luster, orthorhombic crystal system, and distinct cleavage.
Formation & geological history
Formed in low-temperature environments including marine and freshwater settings, caves as speleothems, and hot springs.
Uses & applications
Used in mineral collections, ornamental carvings, and holistic wellness practices.
Geological facts
Aragonite is chemically identical to calcite, but its crystal structure is less thermodynamically stable and will eventually convert to calcite over geological time.
Field identification & locations
Identified by its effervescence in dilute hydrochloric acid and distinct fibrous or columnar crystal aggregates, commonly found in Morocco, Spain, and the USA.
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