Rubellite and Bustamite Physical Properties

Rubellite

Bustamite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

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.

Partly soluble in HCl.

3.32-3.43

Conchoidal

{100} perfect; {110} and {1 1 0} good; {010} poor

5.5-6

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Rubellite and Bustamite Chemical Formula

While comparing Rubellite and Bustamite 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 Rubellite and Bustamite chemical formula.

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Rubellite Vs Sillimanite

Rubellite and Bustamite Specific Gravity

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