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Dumortierite and Sugilite Physical Properties


Sugilite and Dumortierite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.26-3.41   
2.69-2.79   

Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Distinct on {100}, poor on {110}; parting on {001}   
Poor on {0001}   

Mohs Hardness
7-8.5   
5.5-6.5   

Chemical Composition
AlAl6O3BSi3O18   
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Dumortierite and Sugilite Chemical Formula

While comparing Dumortierite and Sugilite 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 Sugilite chemical formula.

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Dumortierite and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.

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