mineral

Honey calcite (likely calcitic limestone or marble)

Calcite — CaCO₃; possibly calcite-rich limestone/marble

AI-generated identification · may be incorrect

Cream to honey-brown, translucent in thin areas, with a vitreous to pearly luster and blocky cleavage surfaces. Mohs hardness 3, rhombohedral cleavage, specific gravity about 2.71; composition and texture suggest massive calcite rather than a single crystal.

Identified August 30, 2026More mineral →

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Physical properties

Formation & geological history

Calcite precipitates from carbonate-rich groundwater or marine sediments; recrystallization produces marble. The specimen’s exact age and whether it is limestone or marble cannot be established from the image alone.

Uses & applications

Used for cement, lime, aggregate, soil treatment, and ornamental stone; attractive honey calcite is collected and occasionally cut for decorative objects.

Geological facts

Calcite effervesces strongly with dilute hydrochloric acid or household vinegar, especially when powdered or freshly scratched. It commonly fluoresces orange, pink, or yellow under ultraviolet light depending on impurities.

Field identification & locations

Common in limestone caves, hydrothermal veins, sedimentary basins, and metamorphic marble worldwide. Confirm with a steel-knife scratch test, acid fizz, and rhombohedral cleavage; do not use acid on valuable specimens.