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Cryolite and Zincite Physical Properties


Zincite and Cryolite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.97   
5.50-5.90   

Fracture
Uneven   
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   

Cleavage
None observed   
On {10 1 0}, perfect; parting on {000 1 }   

Mohs Hardness
2.5   
4   

Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.   
(Zn,Mn2+ )OMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Cryolite and Zincite Chemical Formula

While comparing Cryolite 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 Cryolite and Zincite chemical formula.

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Cryolite and Zincite Specific Gravity

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

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Red Gemstones


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