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Sillimanite
Sillimanite

Marialite
Marialite



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Sillimanite
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Marialite

Sillimanite and Marialite 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)
 
Brittle
-
-
2.50
Uneven, Conchoidal
Distinct on {100} and {110}
5.5-6
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)

Sillimanite and Marialite Chemical Formula

While comparing Sillimanite and Marialite 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 Marialite chemical formula.

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Sillimanite and Marialite Specific Gravity

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