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Alexandrite and Zincite Physical Properties


Zincite and Alexandrite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.69-3.81   
5.50-5.90   

Fracture
Not Available   
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   

Cleavage
1,1 ; 3,2.   
On {10 1 0}, perfect; parting on {000 1 }   

Mohs Hardness
8.5   
4   

Chemical Composition
BeAl 2 O 4   
(Zn,Mn2+ )OMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Alexandrite and Zincite Chemical Formula

While comparing Alexandrite and Zincite 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 Zincite chemical formula.

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Alexandrite and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Zincite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 5.50-5.90 whereas that of Zincite is 5.50-5.90.

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