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Dumortierite
Dumortierite

Rubellite
Rubellite



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Dumortierite
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Rubellite

Dumortierite and Rubellite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18
 
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-
-
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.

Dumortierite and Rubellite Chemical Formula

While comparing Dumortierite 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 Dumortierite and Rubellite chemical formula.

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Dumortierite and Rubellite Specific Gravity

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