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Pararsenolamprite

Year of discovery: 2001 (Japan as the first occurence in the World)

Locality list: A locality of pararsenolamprite

• As
• (As,Sb)

• Class: Native elements
• Surface is not oxidized under ambient condition unlike other As polymorphs.

• Polymorph: Arsenic (Hexagonal), Arsenolamprite (Orthorhombic)

• As => Sb: Antimony
• As => SbAs: Stibarsen

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

• Habit: Acicular, Tabular

• Cleavage: Perfect on {001} (1 plane)
• Hardness: 2-2.5
• Density: 5.9

• System: Orthorhombic
• Group: mm2, Pmn2₁
• Lattice: a=3.7, b=10.2, c=10.3