Formula: Ag1.5 Bi5.5 S9
Origin of name: For Emil Makovicky, Danish mineralogist
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Gray
Diaphaneity: Opaque
Luster: Metallic
Habit: Anhedral grains to 2 mm
Hardness: 3.5 to 4
Specific gravity: 6.6
Cleavage: None
Tenacity:
Streak: Gray
Synonyms/varieties:
Comments:
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