Domeykite

Domeykite is a mineral, an arsenide of copper, Cu₃As. It crystallizes in the isometric system, although crystals are very rare. It typically forms as irregular masses or botryoidal forms. It is an opaque, white to gray metallic mineral with a Mohs hardness of 3 to 3.5 and a specific gravity of 7.2 to 8.1.

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It was first described in 1845 in the Algodones mines, Coquimbo, Chile. It was named for mineralogist Ignacio Domeyko (1802-89).

See also

• List of minerals
• List of minerals named after people

References

• Mindat with location data
• Webmineral
• Mineral galleries