Helenite and Rubellite Physical Properties
Tenacity
Not Available
Not Available
Solubility
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Not Available
Durability
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Not Available
Specific Gravity
Not Available
3.01-3.06
Fracture
Not Available
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Not Available
Not Available
Mohs Hardness
Not Available
7-7.5
Chemical Composition
Not Available
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.
Helenite and Rubellite Chemical Formula
While comparing Helenite 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 Helenite and Rubellite chemical formula.
>- Chemical formula of Rubellite- 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.
Helenite and Rubellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Helenite and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Helenite and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Helenite is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.