mineral

Honey calcite (likely cleavage fragment)

Calcite, CaCO₃

AI-generated identification · may be incorrect

Pale honey-yellow, translucent, glassy to pearly luster, with prominent rhombohedral cleavage and uneven stepped faces. Mohs hardness 3; specific gravity about 2.71. The image is blurred, so aragonite or gypsum are possible but less likely.

Identified August 10, 2026More mineral →

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Physical properties

Formation & geological history

Forms in sedimentary limestones, veins, cavities, and hydrothermal deposits through precipitation of calcium carbonate; calcite is geologically widespread from Precambrian to modern formations. Around 47.6°N, 19.3°E, carbonate rocks and calcite veins are plausible.

Uses & applications

Used for cement, lime, aggregate, neutralizing acids, and optical/calcareous specimens; attractive transparent honey calcite is collected but rarely valuable as jewelry due to softness.

Geological facts

Calcite strongly effervesces in dilute hydrochloric acid or vinegar, though vinegar may react slowly. Clear calcite can show double refraction, and some specimens fluoresce under ultraviolet light.

Field identification & locations

Identify by rhombohedral cleavage, softness (a knife or copper coin can scratch it), and acid reaction. Common worldwide in limestone regions, including Hungary and the broader Carpathian Basin; avoid applying acid if preservation matters.