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Emerald and Star Ruby Physical Properties


Star Ruby and Emerald Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Hard   
Not Available   

Specific Gravity
2.67-2.78   
3.95-4.10   

Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   
Uneven, Uneven, Gems, Sixth Edition (2006)   

Cleavage
Imperfect on the [0001]   
Not Available   

Mohs Hardness
7.5-8   
Not Available   

Chemical Composition
Be3Al2SiO6   
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Emerald and Star Ruby Chemical Formula

While comparing Emerald and Star Ruby 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 Emerald and Star Ruby chemical formula.

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Emerald and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Emerald is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.

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