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Alexandrite and Star Ruby Physical Properties


Star Ruby and Alexandrite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.69-3.81   
3.95-4.10   

Fracture
Not Available   
Uneven, Uneven, Gems, Sixth Edition (2006)   

Cleavage
1,1 ; 3,2.   
Not Available   

Mohs Hardness
8.5   
Not Available   

Chemical Composition
BeAl 2 O 4   
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Alexandrite and Star Ruby Chemical Formula

While comparing Alexandrite 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 Alexandrite and Star Ruby chemical formula.

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Alexandrite and Star Ruby Specific Gravity

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

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