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Cryolite and Crocoite Physical Properties


Crocoite and Cryolite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.97   
5.90-6.10   

Fracture
Uneven   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).   

Cleavage
None observed   
{110} Distinct, {001} Indistinct, {100} Indistinct   

Mohs Hardness
2.5   
2.5-3   

Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.   
PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Cryolite and Crocoite Chemical Formula

While comparing Cryolite and Crocoite 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 Crocoite chemical formula.

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Cryolite and Crocoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cryolite and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.

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