Bogdanovite

Formula:  Au5(Cu,Fe)3(Te,Pb)2

Origin of name:  For Aleksei Bagdanov, Russian geologist (1907-1971)

 

Crystal system:  Orthorhombic, pseudo-cubic

Crystal class:  4/m -3 2/m

Twinning:

Unit cell: a = 4.087 Å (pseudocubic)

 

Colour:  Rose-brown to bronze, pinkish brown

Diaphaneity:

Luster:  Semimetallic

Habit:  Massive

Hardness:

Specific gravity:

Cleavage:  None

Tenacity:

Streak:

 

Synonyms/varieties:

 

Comments: Found in secondary zones with gold, tellurides of Fe, Cu, Pb and bilibinskite

 

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