mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Mohs hardness: 3; Color: shades of orange to translucent peach; Luster: vitreous to waxy/greasy; Crystal System: Trigonal; Cleavage: Perfect rhombohedral; Specific Gravity: 2.71

Hardness: 3
Color: shades of orange to translucent peach
Luster: vitreous to waxy/greasy

Identified July 14, 2026More mineral →

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Physical properties

Mohs hardness: 3; Color: shades of orange to translucent peach; Luster: vitreous to waxy/greasy; Crystal System: Trigonal; Cleavage: Perfect rhombohedral; Specific Gravity: 2.71

Formation & geological history

Formed through sedimentary processes, primarily from the chemical precipitation of calcium carbonate in marine or hydrothermal environments. Its orange color comes from tiny hematite or iron oxide inclusions.

Uses & applications

Commonly used for ornamental carvings, decorative stones, metaphysical and healing crystal practices, and as a source of lime in chemical industries.

Geological facts

Calcite is one of the most common minerals on Earth and the primary constituent of limestone and marble. Orange calcite is particularly known for its characteristic 'waxy' texture when handled.

Field identification & locations

Can be identified in the field by its 3-way rhombohedral cleavage and its vigorous effervescence when exposed to a drop of dilute cold hydrochloric acid. Common in Mexico and Brazil.