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Grandidierite
Grandidierite

Rubellite
Rubellite



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Grandidierite
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Rubellite

Grandidierite and Rubellite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.85-3.00
Uneven
Perfect
7.5
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
 
-
-
-
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.

Grandidierite and Rubellite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Rubellite chemical formula.

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Grandidierite and Rubellite Specific Gravity

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