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Sillimanite
Sillimanite

Matrix Opal
Matrix Opal



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Sillimanite
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Matrix Opal

Sillimanite and Matrix Opal 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)
 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO2·nH2O

Sillimanite and Matrix Opal Chemical Formula

While comparing Sillimanite and Matrix Opal 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 Matrix Opal chemical formula.

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Sillimanite and Matrix Opal Specific Gravity

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