mineral

Green Calcite

Calcite (Calcium Carbonate, CaCO3)

Hardness: 3 on Mohs scale; Color: Pale to sea-foam green; Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral in three directions; Specific Gravity: 2.71

Hardness: 3 on Mohs scale
Color: Pale to sea-foam green
Luster: Vitreous to waxy

Identified July 10, 2026More mineral →

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Physical properties

Hardness: 3 on Mohs scale; Color: Pale to sea-foam green; Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: Perfect rhombohedral in three directions; Specific Gravity: 2.71

Formation & geological history

Formed through sedimentary processes or hydrothermal activity. Often found in massive forms in limestone or marble deposits where iron or other impurities provide the green tint.

Uses & applications

Used primarily as decorative stones, metaphysical tools, and in acid neutralization. Higher quality material is sometimes used for carvings or cabochons.

Geological facts

Calcite is unique because of its double refraction property. Green calcite is specifically associated with 'cleansing' in various belief systems and is notable for its 'soapy' or waxy feel compared to quartz.

Field identification & locations

Identify in the field by its softness (can be scratched by a copper coin) and vigorous effervescence (bubbling) when exposed to cold dilute hydrochloric acid. It is commonly found in Mexico, Brazil, and the USA.