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Rhodolite and Sillimanite Physical Properties


Sillimanite and Rhodolite Physical Properties


Physical Properties

Tenacity
Not Available   
Tough   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.84   
3.20-3.26   

Fracture
Conchoidal   
Splintery   

Cleavage
none, may show indistinct parting   
{010} perfect   

Mohs Hardness
7-7.5   
6-7.5   

Chemical Composition
(Mg,Fe)3Al2Si3O12   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Rhodolite and Sillimanite Chemical Formula

While comparing Rhodolite 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 Rhodolite and Sillimanite chemical formula.

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Rhodolite and Sillimanite Specific Gravity

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

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