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Occurs in Pinal County.

Chemical Formula: CuS

Specific Gravity: 4.6-4.8

Luster: Metallic

Hardness: 1.5-2

Covellite is a copper sulfide mineral that often forms as indigo-blue to black crystals or coatings. Covellite a rare mineral found in some Arizona copper deposits.

Covellite is formed through secondary enrichment processes, where the original copper minerals are altered by weathering and oxidation, leading to the formation of new copper minerals such as covellite.

Next Pinal County mineral: Cowlesite