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Sillimanite
Sillimanite

Larvikite
Larvikite



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Sillimanite
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Larvikite

Sillimanite and Larvikite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
2.59
-
None
6-6.5
(Na,Ca)2(Fe2+,Mg)3Si3O10

Sillimanite and Larvikite Chemical Formula

While comparing Sillimanite and Larvikite 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 Larvikite chemical formula.

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Sillimanite and Larvikite Specific Gravity

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