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Rubellite and Emerald Physical Properties


Emerald and Rubellite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
3.01-3.06   
2.67-2.78   

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

Cleavage
Not Available   
Imperfect on the [0001]   

Mohs Hardness
7-7.5   
7.5-8   

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.   
Be3Al2SiO6   

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Rubellite and Emerald Chemical Formula

While comparing Rubellite and Emerald 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 Emerald chemical formula.

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Rubellite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rubellite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.

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Blue Gemstones


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