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Sillimanite
Sillimanite

Scheelite
Scheelite



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Sillimanite
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Scheelite

Sillimanite and Scheelite 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)
 
Brittle
-
-
5.9-6.3
Conchoidal, Uneven
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
4.5-5
CaWO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Sillimanite and Scheelite Chemical Formula

While comparing Sillimanite and Scheelite 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 Scheelite chemical formula.

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Sillimanite and Scheelite Specific Gravity

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