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Opal
Opal

Vishnevite
Vishnevite



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Opal
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Vishnevite

Opal and Vishnevite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
BrittleWalter Schumann
hot salt water
-
1.98-2.25
Conchoidal
None
5-6.5
SiO2 · nH2O
 
-
-
-
-9999
Uneven
Perfect
5-6
-

Opal and Vishnevite Chemical Formula

While comparing Opal and Vishnevite 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 Vishnevite chemical formula.

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Opal and Vishnevite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Vishnevite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal Vs Vishnevite during the identification of gemstone. Specific gravity of Opal is whereas that of Vishnevite is .