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Baryte and Sillimanite Physical Properties


Sillimanite and Baryte Physical Properties


Physical Properties

Tenacity
Brittle   
Tough   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.3-5   
3.20-3.26   

Fracture
Irregular/uneven   
Splintery   

Cleavage
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect   
{010} perfect   

Mohs Hardness
3-3.5   
6-7.5   

Chemical Composition
Not Available   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Baryte and Sillimanite Chemical Formula

While comparing Baryte 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 Baryte and Sillimanite chemical formula.

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Baryte and Sillimanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Baryte and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Baryte and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Baryte is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.

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