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Phlogopite and Nephrite Physical Properties


Nephrite and Phlogopite Physical Properties


Physical Properties

Tenacity
Tough   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.78-2.85   
2.90-3.10   

Fracture
None, Uneven   
Splintery, Granular, Splintery, Granular, Gemstones (2009)   

Cleavage
Perfect basal (001)   
Not Available   

Mohs Hardness
2-2.5   
6-6.5   

Chemical Composition
Not Available   
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references   

Optical Properties >>
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Phlogopite and Nephrite Chemical Formula

While comparing Phlogopite and Nephrite 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 Phlogopite and Nephrite chemical formula.

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Phlogopite and Nephrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.

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