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Opal
Opal

Wulfenite
Wulfenite



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Opal
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Wulfenite

Opal and Wulfenite 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
 
Brittle
-
-
6.50-7.00
Irregular, Conchoidal
On {011}, distinct; on {001}, {013}, indistinct
3
PbMoO 4Walter Schumann , Gemstones of the world (2001)

Opal and Wulfenite Chemical Formula

While comparing Opal and Wulfenite 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 Wulfenite chemical formula.

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Opal and Wulfenite Specific Gravity

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