mineral

Honey calcite (likely rough calcite)

Calcite, calcium carbonate (CaCO₃)

AI-generated identification · may be incorrect

Pale honey-yellow, translucent, vitreous to pearly luster; Mohs hardness 3, perfect rhombohedral cleavage, trigonal crystal system, and specific gravity about 2.71. The rounded shape may reflect natural weathering or tumbling.

Identified August 20, 2026More mineral →

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Physical properties

Formation & geological history

Forms in limestone, marble, hydrothermal veins, caves, and evaporite environments through precipitation from carbonate-rich fluids; specimens may range from ancient sedimentary deposits to young cave or vein growth.

Uses & applications

Used to manufacture cement, lime, aggregate, and agricultural soil amendments; attractive translucent pieces are sold as decor or mineral specimens, but it is generally too soft for durable jewelry.

Geological facts

Calcite effervesces strongly with dilute hydrochloric acid and often shows double refraction through clear areas. Yellow color commonly results from iron or other trace impurities.

Field identification & locations

Common worldwide, including Mexico, Brazil, China, Iceland, and the United States. Identify by softness, rhombohedral cleavage, acid reaction, and lack of quartz-like hardness; visual identification from the photo is not definitive.