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Breithauptite

Year of discovery: 1840 (St Andreasberg, Germany), 1963 (Japan)

Locality list: 7 localities of breithauptite

• NiSb
• [Ni²⁺][Sb]

• Class: Nickeline group
• Class: Antimonide

• Ni => Pd: Sudburyite
• Ni => Pt: Stumpflite
• Ni => Rh: Minakawaite

• Sb => As: Nickeline
• Sb => Se: Sederholmite

• Color: Light Copper red
• Streak: Reddish brown
• Luster: Metallic
• Diaphaneity: Opaque

• Habit: Hexagonal, Thin platy
• Twin: {10-11}

• Cleavage: No
• Hardness: 5.5
• Density: 8.0

• System: Hexagonal
• Group: 6/mmm, P6₃/mmc
• Lattice: a=3.9, c=5.1

Etymology: Johann Friedrich August Breithaupt (1791-1873), mineralogist from Saxon, Germany