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Isocubanite

Year of discovery: 1988 (Juan de Fuca Ridge complex, Pacific Ocean), 1999 (Japan)

Locality list: 3 localities of isocubanite

• CuFe₂S₃
• [Cu²⁺][Fe²⁺₂][S₃]^6-

• Class: Sulfide

• Polymorph: Cubanite (Orthorhombic)

• Cu => Tl: Picotpaulite
• Cu => Ag: Argentopyrite, Sternbergite

• Color: Yellow, Brown
• Luster: Metallic
• Diaphaneity: Opaque

• Cleavage: No
• Hardness: 3.5
• Density: 4.1

• System: Cubic
• Group: m3m, Fm3m
• Lattice: a=5.3