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Pargasite
Pargasite

Agrellite
Agrellite



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Pargasite
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Agrellite

Pargasite and Agrellite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.04-3.26
Splintery, Uneven
{110} perfect
5-6
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
2.88
-
perfect [110]
5.5
NaCa2Si4O10F

Pargasite and Agrellite Chemical Formula

While comparing Pargasite and Agrellite 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 Agrellite chemical formula.

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Pargasite and Agrellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Agrellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite Vs Agrellite during the identification of gemstone. Specific gravity of Pargasite is whereas that of Agrellite is .