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Rubellite and Hollandite Physical Properties


Hollandite and Rubellite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.01-3.06   
5.05   

Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   
Brittle, Metallic   

Cleavage
Not Available   
Distinct / Good, Prismatic   

Mohs Hardness
7-7.5   
4-6   

Chemical Composition
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.   
Ba(Mn++++,Mn++)8O16   

Optical Properties >>
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Rubellite and Hollandite Chemical Formula

While comparing Rubellite and Hollandite 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 Hollandite chemical formula.

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Rubellite and Hollandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rubellite and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 5.05 whereas that of Hollandite is 5.05.

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