mineral
Chrysocolla
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
AI-generated identification · may be incorrectHardness is 2.5 to 3.5 on the Mohs scale. Colors range from cyan, blue, to green with a vitreous to earthy luster and botryoidal habit.
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Physical properties
Hardness is 2.5 to 3.5 on the Mohs scale. Colors range from cyan, blue, to green with a vitreous to earthy luster and botryoidal habit.
Formation & geological history
Forms as a secondary mineral in the oxidation zones of copper ore bodies, typically in arid environments.
Uses & applications
Used primarily as a gemstone for cabochons and inlay work, as well as a minor ore of copper.
Geological facts
Chrysocolla is often confused with turquoise due to its striking blue-green color, but it is significantly softer.
Field identification & locations
Identified by its vibrant blue-green botryoidal crusts and low hardness; found commonly in Arizona, Chile, and Peru.
