mineral

Polished orange calcite point

Calcite (CaCO₃), likely honey/orange calcite

AI-generated identification · may be incorrect

Typically Mohs hardness 3, vitreous to pearly luster, translucent orange-to-peach color, rhombohedral crystal structure, and perfect rhombohedral cleavage; specific gravity about 2.71. The piece appears cut and polished into a hexagonal point.

Identified August 12, 2026More mineral →

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Physical properties

Formation & geological history

Forms when calcium-rich groundwater or hydrothermal fluids precipitate carbonate, commonly in limestone cavities and veins. Calcite deposits range from modern to Paleozoic and older geological ages.

Uses & applications

Used as a decorative or metaphysical carving and mineral specimen; calcite is also important industrially in cement, lime, aggregate, and agricultural soil treatment. This small polished piece has modest collector value.

Geological facts

Orange color commonly results from iron or other trace impurities. Calcite effervesces vigorously with dilute hydrochloric acid, distinguishing it from quartz.

Field identification & locations

Identify by its softness, rhombohedral cleavage, pale orange translucence, and acid reaction; it can scratch with a steel knife and should be kept away from acids. Common sources include Mexico, Brazil, the United States, and Madagascar.