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

Chrysocolla

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

AI-generated identification · may be incorrect

Hardness of 2.5 to 3.5 on the Mohs scale, vibrant blue-green color, vitreous to earthy luster, and an amorphous or cryptocrystalline structure.

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Physical properties

Hardness of 2.5 to 3.5 on the Mohs scale, vibrant blue-green color, vitreous to earthy luster, and an amorphous or cryptocrystalline structure.

Formation & geological history

Forms in the oxidized zones of copper ore bodies through secondary alteration processes, often in arid environments.

Uses & applications

Used primarily as a gemstone for cabochons, in jewelry making, and as an ornamental decorative stone.

Geological facts

Its name derives from the Greek words for gold and glue, reflecting its historical use in soldering gold.

Field identification & locations

Identified easily by its striking cyan color and association with other copper minerals like malachite; commonly found in Arizona, Chile, and Peru.