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Hemusite

Year of discovery: 1969 (Chelopech mine, Bulgaria), 1988 (Japan)

Locality list: 2 localities of hemusite

• Cu₆SnMoS₈
• [Cu⁺₆][Sn⁴⁺][Mo⁶⁺][S₈]^16-

• Class: Sulfide

• Mo => W: Kiddcreekite

• Color: Gray
• Luster: Metallic
• Diaphaneity: Opaque

• Habit: Rounded grains

• Hardness: 4
• Density: 4.5

• System: Cubic
• Group: m3m, Fm3m
• Lattice: a=10.8

Etymology: Old name of Balkan mountains in Bulgaria where this mineral was discovered for the first time.