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Coral and Sillimanite Physical Properties


Sillimanite and Coral Physical Properties


Physical Properties

Tenacity
Not Available   
Tough   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.60-2.70   
3.20-3.26   

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

Cleavage
Not Available   
{010} perfect   

Mohs Hardness
3-4   
6-7.5   

Chemical Composition
CaCO 3Ulrich Henn and Claudio C.   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Coral and Sillimanite Chemical Formula

While comparing Coral 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 Coral and Sillimanite chemical formula.

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Coral and Sillimanite Specific Gravity

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

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