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Arfvedsonite and Pargasite Physical Properties


Pargasite and Arfvedsonite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.3-3.5   
3.04-3.26   

Fracture
Uneven, Brittle, Metallic, Brittle, Metallic   
Splintery, Brittle, Uneven   

Cleavage
Perfect on [110]   
{110} perfect   

Mohs Hardness
5-6   
5-6   

Chemical Composition
NaNa2(Fe++4Fe+++)Si8O22(OH)2   
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Arfvedsonite and Pargasite Chemical Formula

While comparing Arfvedsonite 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 Arfvedsonite and Pargasite chemical formula.

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Arfvedsonite and Pargasite Specific Gravity

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

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Green Gemstones


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