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Bytownite
Bytownite

Rubellite
Rubellite



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Bytownite
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Rubellite

Bytownite and Rubellite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.72-2.75
Uneven
Perfect on [001], good on [010], imperfect on [110]
6-6.5
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
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.

Bytownite and Rubellite Chemical Formula

While comparing Bytownite 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 Bytownite and Rubellite chemical formula.

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Bytownite and Rubellite Specific Gravity

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