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Esperite and Rubellite Physical Properties


Rubellite and Esperite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.28-4.42   
3.01-3.06   

Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Distinct on [010] and [100] poor on [101]   
Not Available   

Mohs Hardness
5-5.5   
7-7.5   

Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)   
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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Esperite and Rubellite Chemical Formula

While comparing Esperite 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 Esperite and Rubellite chemical formula.

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Esperite and Rubellite Specific Gravity

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

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