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Sapphire and Dumortierite Physical Properties


Dumortierite and Sapphire Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
insoluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.95-4.03   
3.26-3.41   

Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)   
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references   

Cleavage
None, but may exhibit parting   
Distinct on {100}, poor on {110}; parting on {001}   

Mohs Hardness
9   
7-8.5   

Chemical Composition
Al 2 O 3   
AlAl6O3BSi3O18   

Optical Properties >>
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Sapphire and Dumortierite Chemical Formula

While comparing Sapphire and Dumortierite 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 Sapphire and Dumortierite chemical formula.

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Sapphire and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.

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