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Rosasite
Rosasite
☒

Sillimanite
Sillimanite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Effervesces in cold
-
4-4.2
Splintery
Perfect on {100} and {010}
4
CuZn(CO3)(OH)2
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Blue Gemstones

Lawsonite
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Kainite
Kainite
Hauyne
Hauyne
Sillimanite
Sulfur
Sillimanite Vs Sulfur
Sillimanite
Sylvite
Sillimanite Vs Sylvite
Sillimanite
Paraiba
Sillimanite Vs Paraiba

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