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Gold: Physical Properties
Au
Crystal System: Isometric (Cubic)
Luster: Metallic
Color: Rich Gold-yellow
Hardness: 2.5 - 3
Specific Gravity: 19.3
Streak: Rich Gold-yellow
Fracture: Hackly
Cleavage: None
Other Physical Properties: High electrical conductivity; High thermal (heat) conductivity; malleable; ductile.
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