mineral

Tumbled honey calcite

Calcite (calcium carbonate, CaCO₃)

AI-generated identification · may be incorrect

Pale honey-yellow, translucent, glassy to pearly luster with visible cleavage planes; Mohs hardness 3, rhombohedral crystal structure, and specific gravity about 2.71. The rounded shape indicates tumbling or natural abrasion.

Identified September 6, 2026More mineral →

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Physical properties

Formation & geological history

Calcite forms in limestone, hydrothermal veins, caves, and sedimentary environments through precipitation of calcium carbonate. The specimen’s exact geological age and locality cannot be determined from the photograph.

Uses & applications

Used for cement, lime, aggregate, and industrial calcium carbonate; attractive transparent pieces are used as inexpensive decorative or metaphysical specimens. It is generally too soft for durable jewelry.

Geological facts

Calcite effervesces strongly in dilute hydrochloric acid and commonly shows excellent rhombohedral cleavage. Honey coloration may result from iron or other trace impurities.

Field identification & locations

Identify by its softness, cleavage, and acid reaction; it can be scratched by a copper coin or steel knife. Common worldwide, especially in limestone regions, Mexico, Brazil, Iceland, and the United States.