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Opal Australia
Opal Australia

Sillimanite
Sillimanite



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Opal Australia
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Sillimanite

Opal Australia and Sillimanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
5.5-6.5
SiO2*nH2O
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Opal Australia and Sillimanite Chemical Formula

While comparing Opal Australia 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 Opal Australia and Sillimanite chemical formula.

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Opal Australia and Sillimanite Specific Gravity

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