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Opal
Opal

Taaffeite
Taaffeite



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Opal
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Taaffeite

Opal and Taaffeite 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
 
-
-
-
3.60-3.61
Conchoidal
Imperfect/fair/absent
8-8.5
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references

Opal and Taaffeite Chemical Formula

While comparing Opal and Taaffeite 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 Taaffeite chemical formula.

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Opal and Taaffeite Specific Gravity

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