safflorite

Formula: CoAs2

Origin of name: from German Safflor = safflower (used as a pigment)

 

Crystal system: orthorhombic

Crystal class: 2/m 2/m 2/m

Twinning:

Unit cell: 

 

Colour: tin-white, tarnishes dark gray

Diaphaneity: opaque

Luster: metallic

Habit: crystals short to long prismatic, resemble arsenopyrite, massive, radial-fibrous

Hardness: 4.5 to 5

Specific gravity: 7.2

Cleavage: 1; {100} distinct

Tenacity: 

Streak: grayish black

 

Synonyms/varieties:

 

Comments: dimorphous with clinosafflorite

 

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