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Sillimanite
Sillimanite

Nacre
Nacre



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Sillimanite
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Nacre

Sillimanite and Nacre Physical Properties

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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)
 
-
-
-
-9999
-
None
-9999
CaCO3

Sillimanite and Nacre Chemical Formula

While comparing Sillimanite and Nacre 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 Nacre chemical formula.

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Sillimanite and Nacre Specific Gravity

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