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Colusite

Year of discovery: 1933 (Lebedinoe deposit, Russia, and East Colusa mine, USA), 1944 (Japan)

Locality list: 8 localities of colusite

• Cu₁₃VAs₃S₁₆
• Cu₁₃V(As,Sb,Sn,Ge)₃S₁₆
• [Cu⁺₁₃][V⁵⁺][As³⁺₃][S₁₆]

• Class: Colusite group
• Class: Sulfide

• As => Sn: Nekrasovite
• As => Ge: Germanocolusite
• As => Sb: Stibiocolusite

• CuAs₃ => V₃: Sulvanite

• Color: Brown-Bronze
• Streak: Black
• Luster: Metallic
• Diaphaneity: Opaque

• Habit: Granular, Tetrahedral
• Twin: {111}

• Cleavage: No
• Hardness: 3-4
• Density: 4.2

• System: Cubic
• Group: (-4)3m, P(-4)3n
• Lattice: a=10.5

Etymology: Colusa claim, Butte, Montana, USA

Synonym: Arsenosulvanite