Laitakarite

Formula:  Bi4(Se,S)3

Origin of name:  For A. Laitakari, Finnish geologist

 

Crystal system:  Hexagonal

Crystal class:  -3 2/m

Twinning: 

Unit cell: 

 

Colour:  Galena-white

Diaphaneity:  Opaque

Luster:  Metallic

Habit:  Foliated plates and sheets; tiny grains

Hardness:

Specific gravity:  8.12

Cleavage:  1; Basal, excellent

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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