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Cordierite Iolite and Rubellite Physical Properties


Rubellite and Cordierite Iolite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.56-2.66   
3.01-3.06   

Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Not Available   
Not Available   

Mohs Hardness
7-7.5   
7-7.5   

Chemical Composition
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.   
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.   

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Cordierite Iolite and Rubellite Chemical Formula

While comparing Cordierite Iolite 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 Cordierite Iolite and Rubellite chemical formula.

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Cordierite Iolite and Rubellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite Iolite and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite Iolite and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Cordierite Iolite is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.

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