mineral

Honey calcite

Calcite (calcium carbonate, CaCO₃)

AI-generated identification · may be incorrect

Yellow to honey-colored, translucent, with a vitreous to pearly luster and commonly rhombohedral cleavage; Mohs hardness 3, specific gravity about 2.71. The irregular surface appears naturally weathered or lightly polished.

Identified September 14, 2026More mineral →

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Physical properties

Formation & geological history

Calcite precipitates from carbonate-rich groundwater, hydrothermal fluids, caves, and sedimentary environments; individual specimens may form from recent to ancient geological periods. Color commonly results from iron or organic inclusions.

Uses & applications

Used for cement, lime, agricultural soil treatment, crushed stone, and optical demonstrations; attractive transparent pieces are collected or made into ornamental objects, though honey calcite is too soft for durable jewelry.

Geological facts

Calcite effervesces vigorously in dilute hydrochloric acid and shows strong birefringence, producing a double image through clear pieces. Its rhombohedral cleavage distinguishes it from similarly colored quartz.

Field identification & locations

Identify it by its softness, rhombohedral cleavage, and acid reaction; common sources include Mexico, Iceland, the United States, Brazil, and China. Avoid abrasives and acidic cleaners, which can scratch or dissolve it.