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Allanite
Allanite

Rubellite
Rubellite



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Allanite
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Rubellite

Allanite and Rubellite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.40-4.20
-
Indistinct
-9999
Ca(Ce,La,Y,Ca)Al2(Fe,Al)Si3O12(OH)
 
-
-
-
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.

Allanite and Rubellite Chemical Formula

While comparing Allanite 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 Allanite and Rubellite chemical formula.

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Allanite and Rubellite Specific Gravity

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