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 is 2.5 to 3.5 on the Mohs scale. Exhibits bright green to cyan-blue coloration, vitreous to earthy luster, and a botryoidal or crusting crystal habit.

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Physical properties

Hardness is 2.5 to 3.5 on the Mohs scale. Exhibits bright green to cyan-blue coloration, vitreous to earthy luster, and a botryoidal or crusting crystal habit.

Formation & geological history

Forms as a secondary mineral in the oxidation zones of copper ore bodies through the alteration of primary copper minerals.

Uses & applications

Used primarily as a gemstone in cabochons, inlaid jewelry, and ornamental carvings, as well as a minor copper ore.

Geological facts

Its name originates from Greek words meaning gold and glue, reflecting its historical use in soldering gold.

Field identification & locations

Easily identified by its vibrant blue-green color and association with other copper minerals like malachite; found globally in arid copper-mining regions.