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Sillimanite and Hyalite Physical Properties


Hyalite and Sillimanite Physical Properties


Physical Properties

Tenacity
Tough   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.20-3.26   
Not Available   

Fracture
Splintery   
Conchoidal, Conchoidal, Gemstones of the world (2001)   

Cleavage
{010} perfect   
Not Available   

Mohs Hardness
6-7.5   
5.5-6.5   

Chemical Composition
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)   
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)   

Optical Properties >>
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Sillimanite and Hyalite Chemical Formula

While comparing Sillimanite and Hyalite 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 Hyalite chemical formula.

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Sillimanite and Hyalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Hyalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Hyalite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is Not Available whereas that of Hyalite is Not Available.

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