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Sylvite
Sylvite

Rubellite
Rubellite



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Sylvite
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Rubellite

Sylvite and Rubellite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
1.993
Uneven
Perfect on [100], [010], [001]
2.5
KCl
 
-
-
-
3.01-3.06
Conchoidal
Indiscernible
7-7.5
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Sylvite and Rubellite Chemical Formula

While comparing Sylvite and Rubellite 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 Sylvite and Rubellite chemical formula.

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Sylvite and Rubellite Specific Gravity

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