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Allargentum

Year of discovery: 1970 (Beaver mine and University mine, Canada), 2017 (Japan)

Locality list: A locality of allargentum

• Ag_1-XSb_X, X=0.09-0.16
• [Ag_1-X][Sb_X]

• Class: Antimonide

• Color: Silver gray
• Luster: Metallic
• Diaphaneity: Opaque

• Hardness: 3.5
• Density: 10.0

• System: Hexagonal
• Group: 6/mmm, P6₃/mmc
• Lattice: a=3.0, c=4.8