Idaite

Formula:  Cu3FeS4

Origin of name:  After locality; Ida mine, Khan, Namibia

 

Crystal system:  Hexagonal

Crystal class:  Unknown

Twinning: 

Unit cell: 

 

Colour:  Nearly copper-red to golden brown

Diaphaneity:  Opaque

Luster:  Metallic

Habit:  Rare anhedral grains, rims and fracture fillings on chalcopyrite and exsolution lamellae in bornite; massive

Hardness:  2.5

Specific gravity:  4.2

Cleavage:  None

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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