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Zincite and Cryolite Physical Properties


Cryolite and Zincite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
5.50-5.90   
2.97   

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

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

Mohs Hardness
4   
2.5   

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

Optical Properties >>
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Zincite and Cryolite Chemical Formula

While comparing Zincite and Cryolite 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 Zincite and Cryolite chemical formula.

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Zincite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zincite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zincite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Zincite is 2.97 whereas that of Cryolite is 2.97.

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