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Enstatite
Enstatite

Sillimanite
Sillimanite



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Enstatite
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Sillimanite

Enstatite and Sillimanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.20-3.25
Uneven, Conchoidal
Good/distinct on [210]
5.5
Mg 2Si 2O 6Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Enstatite and Sillimanite Chemical Formula

While comparing Enstatite 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 Enstatite and Sillimanite chemical formula.

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Enstatite and Sillimanite Specific Gravity

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