mineral

Possible honey-colored calcite (coarsely crystalline)

Calcite, CaCO₃

AI-generated identification · may be incorrect

The specimen appears tan to golden-brown with a pearly, layered sparkle, but the photo does not show diagnostic crystal faces. Calcite has Mohs hardness 3, vitreous-to-pearly luster, trigonal crystal structure, and prominent rhombohedral cleavage; specific gravity is about 2.71.

Identified October 7, 2026More mineral →

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Physical properties

Formation & geological history

If calcite, it likely formed as crystals precipitated from mineral-rich water in a cavity or vein; calcite occurs in rocks spanning much of geologic time. The image alone cannot establish its exact identity or age.

Uses & applications

Calcite is used in cement and lime production, as a construction and industrial mineral, and as a decorative or collectible specimen.

Geological facts

Calcite readily fizzes in dilute hydrochloric acid and is softer than a steel knife; these tests can help distinguish it from similar-looking minerals.

Field identification & locations

Golden color and layered appearance are not enough for a firm field identification; check cleavage, hardness, and acid reaction, or consult a mineral specialist. Calcite is widespread globally, especially in limestone and hydrothermal veins.