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Pargasite and Tortoiseshell Physical Properties


Tortoiseshell and Pargasite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.04-3.26   
1.25-1.35   

Fracture
Splintery, Brittle, Uneven   
Not Available   

Cleavage
{110} perfect   
Not Available   

Mohs Hardness
5-6   
Not Available   

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

Optical Properties >>
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Pargasite and Tortoiseshell Chemical Formula

While comparing Pargasite and Tortoiseshell 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 Pargasite and Tortoiseshell chemical formula.

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Pargasite and Tortoiseshell Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Tortoiseshell Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Tortoiseshell Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 1.25-1.35 whereas that of Tortoiseshell is 1.25-1.35.

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Green Gemstones


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