Formula: Pb2Bi2(S,Se)3
Origin of name: For P.V. Babkin, Russian geologist
Crystal system: Hexagonal
Crystal class: -3 or -3 2/m
Twinning:
Unit cell:
Colour: Silvery grey
Diaphaneity:
Luster: Metallic
Habit: Tablets to a few tenths of mm forming aggregates to 2 mm
Hardness: 2
Specific gravity: 8.096
Cleavage: 1; {001} perfect
Tenacity:
Streak: Grey
Synonyms/varieties:
Comments:
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