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Vlasovite
Vlasovite

Sillimanite
Sillimanite



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Vlasovite
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Sillimanite

Vlasovite and Sillimanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Nearly insoluble in HCl and HNO3
-
2.97
Conchoidal
Distinct on {010}
6
-
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Vlasovite and Sillimanite Chemical Formula

While comparing Vlasovite and Sillimanite 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 Vlasovite and Sillimanite chemical formula.

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Vlasovite and Sillimanite Specific Gravity

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