Rock Identifier
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral
mineral

Orange Calcite

Calcium Carbonate (CaCO3)

AI-generated identification · may be incorrect

Mohs hardness of 3, orange to peach color, vitreous to pearly luster, trigonal crystal system, perfect rhombohedral cleavage, specific gravity of 2.71.

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Physical properties

Mohs hardness of 3, orange to peach color, vitreous to pearly luster, trigonal crystal system, perfect rhombohedral cleavage, specific gravity of 2.71.

Formation & geological history

Formed through the precipitation of calcium carbonate in low-temperature hydrothermal veins, sedimentary environments, and cave deposits.

Uses & applications

Used in optical applications, cement manufacturing, soil conditioning, and as decorative or crystal healing specimens.

Geological facts

Orange calcite exhibits strong white to orange fluorescence under ultraviolet light and effervesces readily in dilute hydrochloric acid.

Field identification & locations

Easily identified by its soft nature, distinct rhombohedral cleavage, and acid reactivity. Found worldwide, particularly in Mexico.