Arsenobismite

Formula:  Bi2(AsO4)(OH)3

Origin of name:  From elements in composition

 

Crystal system:  Orthorhombic

Crystal class:  Unknown

Twinning:

Unit cell:

 

Colour:  Yellowish brown to yellowish green

Diaphaneity: 

Luster:

Habit:  Friable or ochrous microcrystalline masses

Hardness:

Specific gravity:  5.7

Cleavage:  None

Tenacity:

Streak: Greenish yellow

 

Synonyms/varieties:

 

Comments: Discredited IMA 1999. An inadequately described species now discredited as being a preisingerite-rich concentrate with atelestite and beudantite.

 

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