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Dumortierite
Dumortierite

Anorthite
Anorthite



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Dumortierite
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Anorthite

Dumortierite and Anorthite 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
-
-
2.77
Uneven
Perfect [001] good [010] poor [110]
6-6.5
CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Dumortierite and Anorthite Chemical Formula

While comparing Dumortierite and Anorthite 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 Anorthite chemical formula.

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Dumortierite and Anorthite Specific Gravity

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