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Benitoite
Benitoite

Sillimanite
Sillimanite



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Benitoite
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Sillimanite

Benitoite and Sillimanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
Insoluble: HCl
-
3.61-3.68
Conchoidal
[10 1 1] poor
6-6.5
BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Benitoite and Sillimanite Chemical Formula

While comparing Benitoite 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 Benitoite and Sillimanite chemical formula.

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Benitoite and Sillimanite Specific Gravity

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