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Phlogopite and Pargasite Physical Properties


Pargasite 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   
3.04-3.26   

Fracture
None, Uneven   
Splintery, Brittle, Uneven   

Cleavage
Perfect basal (001)   
{110} perfect   

Mohs Hardness
2-2.5   
5-6   

Chemical Composition
Not Available   
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Phlogopite and Pargasite Chemical Formula

While comparing Phlogopite and Pargasite 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 Pargasite chemical formula.

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Phlogopite and Pargasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.

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Green Gemstones


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