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Maldonite

Year of discovery: 1870 (Nuggety Reef, Australia), 1947 (Japan)

Locality list: 2 localities of maldonite

• Au₂Bi

• Class: Alloy

• Bi => Au: Gold

• Au => Bi: Bismuth

• Color: Reddish brown, Silver white
• Luster: Metallic
• Diaphaneity: Opaque

• Cleavage: Distinct on {001} and {110} (9 planes)
• Hardness: 1.5-2
• Density: 15.5

• System: Cubic
• Group: m3m, Fd3m
• Lattice: a=8.0