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Moroxite
Moroxite
☒

Sillimanite
Sillimanite
☒



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Moroxite
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Sillimanite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.13-3.26
Conchoidal
None
-9999
Ca 5(F,Cl)(PO 4) 3Arthur Thomas , Gemstones (2009)
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)