mineral

Honey-colored calcite

Calcite (CaCO₃), likely massive or partly crystalline

AI-generated identification · may be incorrect

Typically Mohs hardness 3, vitreous to pearly luster, translucent yellow-gold color, white streak, and prominent rhombohedral cleavage; specific gravity about 2.71. The specimen appears rough, translucent, and honey-colored, though iron staining or surface treatment may contribute to its color.

Identified September 14, 2026More mineral →

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Physical properties

Formation & geological history

Forms from calcium-carbonate-rich hydrothermal veins, caves, evaporites, and sedimentary limestone environments; individual crystals may form over geologically recent to Paleozoic–Mesozoic host rocks. Exact age and locality cannot be determined from the image.

Uses & applications

Used in cement, lime, aggregate, chemical production, and optical research; attractive transparent or strongly colored pieces are collected as mineral specimens. It is generally too soft for durable jewelry.

Geological facts

Calcite effervesces vigorously in cold dilute hydrochloric acid and may show birefringence, producing doubled images through clear pieces. Its rhombohedral cleavage distinguishes it from similarly colored quartz, which is much harder.

Field identification & locations

Common worldwide, including Mexico, the United States, Iceland, Brazil, and China. Test cautiously with a steel point and vinegar or dilute acid on an inconspicuous area; avoid scratching valuable specimens.