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Dumortierite
Dumortierite

Opal
Opal



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Dumortierite
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Opal

Dumortierite and Opal Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18
 
BrittleWalter Schumann
hot salt water
-
1.98-2.25
Conchoidal
None
5-6.5
SiO2 · nH2O

Dumortierite and Opal Chemical Formula

While comparing Dumortierite 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 Dumortierite and Opal chemical formula.

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Dumortierite and Opal Specific Gravity

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