Babkinite

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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