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Emplectite

Year of discovery: 1853 (Tannenbaum mine, Germany), 1908 (Japan)

Locality list: 20 localities of emplectite

• CuBiS₂
• [Cu⁺][Bi³⁺][S₂]^4-

• Class: Emplectite group < Binary sulfosalts < Sulfosalt class
• Class: Sulfosalt

• Bi => Fe: Chalcopyrite
• Bi => Ga: Gallite
• Bi => In: Roquesite
• Bi => Sb: Chalcostibite

• Color: Grayish white
• Streak: Black
• Luster: Metallic
• Diaphaneity: Opaque

• Habit: Platy prismatic on {010} elongated to [001]
• Twin: Observed under microscope, but detail is not known.

• Cleavage: Perfect on {010} (1 plane), Good on {001} (1 plane)
• Hardness: 2
• Density: 6.4

• System: Orthorhombic
• Group: mmm, Pmna
• Lattice: a=6.1, b=3.9, c=14.5

Etymology: "Knit in" in Persian, as it is mixed with quartz.

Synonym: Klaprothite