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Pargasite
Pargasite
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Fayalite
Fayalite
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Pargasite
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Fayalite

Pargasite and Fayalite 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)
 
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-
-
4.392
Conchoidal
{010} moderate, {100} imperfect
6.5-7
Fe 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Pargasite and Fayalite Chemical Formula

While comparing Pargasite and Fayalite 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 Fayalite chemical formula.

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Pargasite and Fayalite Specific Gravity

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