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Marcasite
Marcasite

Pargasite
Pargasite



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Marcasite
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Pargasite

Marcasite and Pargasite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.80-4.90
Uneven
{010} Indistinct
6-6.5
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
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)

Marcasite and Pargasite Chemical Formula

While comparing Marcasite 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 Marcasite and Pargasite chemical formula.

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Marcasite and Pargasite Specific Gravity

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