Rock Identifier
Chrysocolla (Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral
mineral

Chrysocolla

Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O

AI-generated identification · may be incorrect

Hardness of 2 to 4 on the Mohs scale, typically cyan, blue, or green in color with a vitreous to earthy luster. It has an amorphous or cryptocrystalline structure with uneven fracture and poor cleavage.

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Physical properties

Hardness of 2 to 4 on the Mohs scale, typically cyan, blue, or green in color with a vitreous to earthy luster. It has an amorphous or cryptocrystalline structure with uneven fracture and poor cleavage.

Formation & geological history

Forms as a secondary mineral in the oxidized zones of copper ore bodies, created by circulating fluids rich in silica and copper.

Uses & applications

Used primarily as an ornamental gemstone, for cabochons and beads in jewelry, and as a collector's mineral specimen.

Geological facts

Chrysocolla is often found mixed with quartz or malachite, enhancing its hardness and durability for jewelry making.

Field identification & locations

Identified by its vibrant blue-green color and low hardness, commonly found in major copper-producing regions like the southwestern United States, Chile, and Peru.