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Sillimanite
Sillimanite

Idocrase
Idocrase



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Sillimanite
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Idocrase

Sillimanite and Idocrase 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)
 
-
-
-
-9999
-
Indiscernible
-9999
Ca10(Mg,Fe)2(Si2O7)2(SiO4)2O(OH)2

Sillimanite and Idocrase Chemical Formula

While comparing Sillimanite and Idocrase 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 Idocrase chemical formula.

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Sillimanite and Idocrase Specific Gravity

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