mineral
Green Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness: 3 on Mohs scale. Color: Pale to lime green. Luster: Vitreous to waxy. Crystal Structure: Trigonal. Cleavage: Perfect rhombohedral. Specific Gravity: 2.71.
- Hardness
- 3 on Mohs scale
- Color
- Pale to lime green
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 3 on Mohs scale. Color: Pale to lime green. Luster: Vitreous to waxy. Crystal Structure: Trigonal. Cleavage: Perfect rhombohedral. Specific Gravity: 2.71.
Formation & geological history
Formed through sedimentary processes or hydrothermal activity. Often found in massive forms in sedimentary beds or as a secondary mineral in igneous rocks.
Uses & applications
Commonly used for lapidary work, decorative carvings, metaphysical stones, and sometimes as a source for lime or cement in industry.
Geological facts
Green calcite is often acid-washed to give it a smooth, waxy finish that is popular for collectors. It react vigorously (effervesces) with cold dilute hydrochloric acid.
Field identification & locations
Identify by its softness (can be scratched by a copper penny), rhombohedral cleavage, and waxy texture. Commonly found in Mexico and Brazil.
