Stillwaterite

Formula: Pd8As3

Origin of name: after locality Stillwater Complex, Montana, USA

 

Crystal system: hexagonal

Crystal class: 3 or -3

Twinning:

Unit cell: 

 

Colour: light creamy gray in reflected light

Diaphaneity: 

Luster: metallic

Habit: anhedral grains, 75 to 265 micron

Hardness

Specific gravity: 10.40

Cleavage: none

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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