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Dumortierite
Dumortierite

Kyanite
Kyanite



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Dumortierite
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Kyanite

Dumortierite and Kyanite 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
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5

Dumortierite and Kyanite Chemical Formula

While comparing Dumortierite and Kyanite 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 Kyanite chemical formula.

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Dumortierite and Kyanite Specific Gravity

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