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Opal
Opal

Tanzanite
Tanzanite



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Opal
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Tanzanite

Opal and Tanzanite 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
 
-
-
Hard
3.35
Uneven, Conchoidal
Perfect {010}, imperfect {100}
6.5-7
Ca2Al3(SiO4)3(OH)

Opal and Tanzanite Chemical Formula

While comparing Opal and Tanzanite 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 Tanzanite chemical formula.

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Opal and Tanzanite Specific Gravity

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