mineral

Tumbled honey calcite (probable)

Calcite, calcium carbonate (CaCO₃)

AI-generated identification · may be incorrect

Translucent honey-yellow to pale orange, vitreous to pearly luster, and commonly rhombohedral cleavage; Mohs hardness 3, specific gravity about 2.71. The rounded shape indicates tumbling or natural abrasion, and the white areas may be calcite veining or surface alteration.

Identified August 25, 2026More mineral →

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Physical properties

Formation & geological history

Calcite forms in sedimentary limestones, hydrothermal veins, caves, and metamorphic marbles; deposits range from Precambrian to modern. Honey coloration commonly comes from iron or other trace impurities.

Uses & applications

Used for cement, lime, aggregate, optical calcite, and decorative stone; attractive translucent pieces are sold as inexpensive mineral specimens or lapidary material.

Geological facts

Calcite effervesces strongly with dilute hydrochloric acid or vinegar, though vinegar may react slowly. It commonly shows double refraction in clear crystals.

Field identification & locations

Identify by its softness, rhombohedral cleavage, and acid reaction; distinguish from quartz, which is harder (Mohs 7) and does not fizz. Common worldwide, including Mexico, the United States, Iceland, and China.