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Sillimanite
Sillimanite

Cryolite
Cryolite



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Sillimanite
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Cryolite

Sillimanite and Cryolite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)
 
Brittle
Soluble
-
2.97
Uneven
None observed
2.5
Na 3AlF 6Ulrich Henn and Claudio C.

Sillimanite and Cryolite Chemical Formula

While comparing Sillimanite and Cryolite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Sillimanite and Cryolite chemical formula.

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Sillimanite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite Vs Cryolite during the identification of gemstone. Specific gravity of Sillimanite is whereas that of Cryolite is .