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Dumortierite and Phlogopite Physical Properties


Phlogopite and Dumortierite Physical Properties


Physical Properties

Tenacity
Not Available   
Tough   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.26-3.41   
2.78-2.85   

Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references   
None, Uneven   

Cleavage
Distinct on {100}, poor on {110}; parting on {001}   
Perfect basal (001)   

Mohs Hardness
7-8.5   
2-2.5   

Chemical Composition
AlAl6O3BSi3O18   
Not Available   

Optical Properties >>
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Dumortierite and Phlogopite Chemical Formula

While comparing Dumortierite and Phlogopite 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 Phlogopite chemical formula.

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Dumortierite and Phlogopite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.

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