mineral

Honey calcite (yellow calcite)

Calcite, CaCO₃

AI-generated identification · may be incorrect

Mohs hardness 3; translucent golden-yellow to honey-colored with a vitreous to pearly luster. Trigonal crystal structure; commonly shows rhombohedral cleavage and fizzes in dilute acid.

Identified September 24, 2026More mineral →

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Physical properties

Mohs hardness 3; translucent golden-yellow to honey-colored with a vitreous to pearly luster. Trigonal crystal structure; commonly shows rhombohedral cleavage and fizzes in dilute acid.

Formation & geological history

Forms when calcium-carbonate-rich fluids precipitate in veins, cavities, and sedimentary settings; calcite occurs from recent deposits to rocks billions of years old. Yellow coloration commonly comes from trace impurities.

Uses & applications

Used as a collectible and ornamental stone; calcite also serves as a major source of lime and cement and is used as aggregate and industrial filler.

Geological facts

Calcite is strongly birefringent: a clear piece can show a doubled image through it.

Field identification & locations

Look for its honey color, relatively soft surface, rhombohedral cleavage, and acid reaction; common localities include Mexico, the United States, and many limestone regions. The photo’s rough translucent appearance is consistent with honey calcite.