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Dumortierite
Dumortierite

Poudretteite
Poudretteite



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Dumortierite
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Poudretteite

Dumortierite and Poudretteite Physical Properties

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
 
Brittle
-
-
2.51-2.53
Conchoidal, Splintery
None
5
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)

Dumortierite and Poudretteite Chemical Formula

While comparing Dumortierite and Poudretteite 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 Poudretteite chemical formula.

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Dumortierite and Poudretteite Specific Gravity

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