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, distinct cyan to bluish-green color, vitreous to earthy luster, and an amorphous or cryptocrystalline crystal structure.

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Physical properties

Hardness of 2.5 to 3.5 on the Mohs scale, distinct cyan to bluish-green color, vitreous to earthy luster, and an amorphous or cryptocrystalline crystal structure.

Formation & geological history

Forms as a secondary mineral in the oxidation zones of copper ore bodies, typically precipitated from silica-rich groundwater in arid environments.

Uses & applications

Widely utilized as a semi-precious gemstone in cabochons, inlaid jewelry, and ornamental carvings due to its vibrant teal coloration.

Geological facts

Chrysocolla is often found mixed with quartz, chalcedony, or malachite, which can significantly increase the hardness and durability of the specimen.

Field identification & locations

Easily identified by its vivid blue-green hue and association with copper deposits; commonly sourced from the southwestern United States, Chile, and Peru.