mineral
Chrysocolla
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
AI-generated identification · may be incorrectHardness: 2 to 4 on the Mohs scale. Color: Vibrant shades of cyan, blue, green, and turquoise, often mixed with brown or black matrix. Luster: Vitreous to earthy. Crystal structure: Orthorhombic/amorphous, typically found as botryoidal masses, crusts, or vein fillings. Cleavage: None. Specific gravity: 2.0 to 2.4.
- Hardness
- 2 to 4 on the Mohs scale
- Luster
- Vitreous to earthy
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Physical properties
Hardness: 2 to 4 on the Mohs scale. Color: Vibrant shades of cyan, blue, green, and turquoise, often mixed with brown or black matrix. Luster: Vitreous to earthy. Crystal structure: Orthorhombic/amorphous, typically found as botryoidal masses, crusts, or vein fillings. Cleavage: None. Specific gravity: 2.0 to 2.4.
Formation & geological history
Forms as a secondary mineral in the oxidation zones of copper ore bodies, precipitated from silica-rich solutions circulating through copper deposits.
Uses & applications
Used primarily as a gemstone, for ornamental carvings, and as a collector's mineral specimen.
Geological facts
Its name comes from the Greek words 'chrysos' (gold) and 'kolla' (glue), referencing the material used historically to solder gold.
Field identification & locations
Easily identified by its vivid blue-green coloration and relatively soft nature. Found globally in major copper-producing regions such as the southwestern United States, Chile, Peru, and Russia.
