Minerals

Copper

Cu

Overview

Native copper.

Identification characteristics

Mohs hardness 2.5–3
Streak: Copper-red
Lustre: Metallic

Formation and occurrence

Basaltic terrains, oxidised deposits

Common uses

Electrical applications

Physical properties

Chemical formula: Cu
Mineral group: Native element
Mineral class: Native elements
Crystal system: Isometric
Mohs hardness: 2.5–3
Specific gravity: 8.9
Colour: Copper-red
Streak: Copper-red
Lustre: Metallic
Transparency: Opaque

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