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Sylvite and Opal Physical Properties


Opal and Sylvite Physical Properties


Physical Properties

Tenacity
Brittle   
BrittleWalter Schumann   

Solubility
Soluble   
hot salt water   

Durability
Not Available   
Not Available   

Specific Gravity
1.993   
1.98-2.25   

Fracture
Uneven, Brittle   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle   

Cleavage
Perfect on [100], [010], [001]   
None   

Mohs Hardness
2.5   
5-6.5   

Chemical Composition
Not Available   
SiO2 · nH2O   

Optical Properties >>
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Sylvite and Opal Chemical Formula

While comparing Sylvite and 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 Sylvite and Opal chemical formula.

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Sylvite and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sylvite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Opal Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 1.98-2.25 whereas that of Opal is 1.98-2.25.

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