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Sillimanite and Rhodolite Physical Properties


Rhodolite 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   
3.84   

Fracture
Splintery   
Conchoidal   

Cleavage
{010} perfect   
none, may show indistinct parting   

Mohs Hardness
6-7.5   
7-7.5   

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

Optical Properties >>
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Sillimanite and Rhodolite Chemical Formula

While comparing Sillimanite and Rhodolite 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 Rhodolite chemical formula.

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Sillimanite and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 3.84 whereas that of Rhodolite is 3.84.

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