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Alexandrite and Poldervaartite Physical Properties


Poldervaartite 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   
2.91   

Fracture
Not Available   
Handbook of mineralogy (2001)   

Cleavage
1,1 ; 3,2.   
None   

Mohs Hardness
8.5   
Not Available   

Chemical Composition
BeAl 2 O 4   
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)   

Optical Properties >>
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Alexandrite and Poldervaartite Chemical Formula

While comparing Alexandrite and Poldervaartite 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 Poldervaartite chemical formula.

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Alexandrite and Poldervaartite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.91 whereas that of Poldervaartite is 2.91.

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