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Heteromorphite

Year of discovery: 1876 (Caspari mine, Germany), 1997 (Japan)

Locality list: A locality of heteromorphite

• Pb₇Sb₈S₁₉
• [Pb²⁺₇][Sb³⁺₈][S₁₉]^38-

• Class: Plagionite group < Large 2D fragment Pb sulfosalts < Sulfosalt class
• Class: Sulfosalt

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

• Habit: Pyramidal, frequently elongated parallel to pyramidal edge
• Aggregate: Subparallel

• Cleavage: Good on {112} (1 plane)
• Hardness: 2.5-3
• Density: 5.7

• System: Monoclinic
• Group: 2/m, C2/c
• Lattice: a=13.6, b=11.9, c=21.2, β=90.8

Etymology: Different and form in Greek