Orthochrysotile

Formula: Mg3Si2O5(OH)4

Origin of name: from orthorhombic and chrysotile

 

Crystal system: orthorhombic

Crystal class: mm2

Twinning: 

Unit cell: 

 

Colour: white, gray, yellow, green, brownish

Diaphaneity: translucent

Luster: silky, greasy

Habit: massive, finely fibrous

Hardness: 2.5

Specific gravity: 2.58

Cleavage: 

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: polymorphous with antigorite, clinochrysotile, lizardite and parachrysotile

 

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