mineral

Green Calcite

Calcium Carbonate (CaCO3)

Hardness: 3 on Mohs scale; Color: pale green to lime green; Luster: Vitreous to waxy/greasy; Crystal system: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral in three directions.

Hardness: 3 on Mohs scale
Color: pale green to lime green
Luster: Vitreous to waxy/greasy

Identified July 20, 2026More mineral →

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Physical properties

Hardness: 3 on Mohs scale; Color: pale green to lime green; Luster: Vitreous to waxy/greasy; Crystal system: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral in three directions.

Formation & geological history

Formed through sedimentary processes or in hydrothermal veins, often from the accumulation of shell, coral, and algal debris in marine environments, followed by chemical precipitation.

Uses & applications

Primarily used as a decorative specimen for mineral collectors, lapidary work (cabbing), and in metaphysical circles. Industrial calcite is used in cement and agriculture.

Geological facts

Calcite is one of the most common minerals on Earth and is the primary constituent of limestone and marble. Green calcite gets its color from chlorite or other mineral inclusions during formation.

Field identification & locations

Identified by its distinctive 'soapy' or waxy feel, rhombohedral cleavage, and it will effervesce (fizz) when in contact with weak acid like vinegar. Commonly found in Mexico and Brazil.