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Gaylussite and Black Opal Physical Properties


Black Opal and Gaylussite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
decomposes in water   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.93-1.99   
1.97-2.22   

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

Cleavage
perfect [110]   
Not Available   

Mohs Hardness
2.5   
6-6.5   

Chemical Composition
Na2Ca(CO3)2•5(H2O)   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Gaylussite and Black Opal Chemical Formula

While comparing Gaylussite and Black Opal 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 Gaylussite and Black Opal chemical formula.

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Gaylussite and Black Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gaylussite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gaylussite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Gaylussite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.

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