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Alexandrite and Tantalite Physical Properties


Tantalite 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   
5.2   

Fracture
Not Available   
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
1,1 ; 3,2.   
Good in one direction   

Mohs Hardness
8.5   
6-6.5   

Chemical Composition
BeAl 2 O 4   
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references   

Optical Properties >>
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Alexandrite and Tantalite Chemical Formula

While comparing Alexandrite and Tantalite 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 Tantalite chemical formula.

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Alexandrite and Tantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Tantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Tantalite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 5.2 whereas that of Tantalite is 5.2.

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