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Whitlockite and Sillimanite Physical Properties


Sillimanite and Whitlockite Physical Properties


Physical Properties

Tenacity
Not Available   
Tough   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.12   
3.20-3.26   

Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle   
Splintery   

Cleavage
None   
{010} perfect   

Mohs Hardness
Not Available   
6-7.5   

Chemical Composition
Ca 9(Mg,Fe2+ )(PO 4) 6(PO 3OH)Anthony et al , Handbook of mineralogy (2001)   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Whitlockite and Sillimanite Chemical Formula

While comparing Whitlockite 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 Whitlockite and Sillimanite chemical formula.

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Whitlockite and Sillimanite Specific Gravity

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

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