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Sillimanite
Sillimanite

Muscovite
Muscovite



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Sillimanite
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Muscovite

Sillimanite and Muscovite 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)
 
Elastic
-
-
2.78-2.88
-
Perfect on the {001}
2-3
KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Sillimanite and Muscovite Chemical Formula

While comparing Sillimanite and Muscovite 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 Muscovite chemical formula.

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Sillimanite and Muscovite Specific Gravity

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