mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Hardness: 3 on Mohs scale. Color: Pale orange to honey-yellow. Luster: Vitreous to waxy. Crystal Structure: Trigonal/Rhombohedral. Cleavage: Perfect rhombohedral in three directions. Specific Gravity: 2.71.

Hardness: 3 on Mohs scale
Color: Pale orange to honey-yellow
Luster: Vitreous to waxy

Identified April 7, 2026More mineral →

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Physical properties

Formation & geological history

Formed through sedimentary processes, often precipitating from calcium-rich solutions in caves or hot springs, or as a byproduct of evaporating seawater. Most specimens are from the Phanerozoic eon.

Uses & applications

Predominantly used for ornamental purposes, lapidary work (cabbing), and as a popular 'healing crystal' in metaphysical circles. In industrial form, calcite is used in cement and agriculture.

Geological facts

Calcite is one of the most common minerals on Earth. Orange calcite specifically gets its color from tiny inclusions of hematite or other iron oxides during formation.

Field identification & locations

Can be identified in the field by its softness (can be scratched by a copper penny) and its strong reaction (effervescence) to dilute hydrochloric acid. It is commonly found in Mexico, Brazil, and the USA.