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Opal and Zincite Physical Properties


Zincite and Opal Physical Properties


Physical Properties

Tenacity
BrittleWalter Schumann   
Brittle   

Solubility
hot salt water   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.98-2.25   
5.50-5.90   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle   
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   

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

Mohs Hardness
5-6.5   
4   

Chemical Composition
SiO2 · nH2O   
(Zn,Mn2+ )OMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Opal and Zincite Chemical Formula

While comparing Opal 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 Opal and Zincite chemical formula.

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Opal and Zincite Specific Gravity

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

Semi Precious

Semi Precious


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