Pyrrhotite and Pargasite Physical Properties

Pyrrhotite

Pargasite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.58-4.653.04-3.26

1 7.18

1.5 Fracture

Uneven

Splintery, Brittle, Uneven

1.6 Cleavage

Absent

{110} perfect

1.7 Mohs Hardness

3.5-4.55-6

2 10

1.8 Chemical Composition

Not Available

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Pyrrhotite and Pargasite Chemical Formula

While comparing Pyrrhotite 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 Pyrrhotite and Pargasite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Pyrrhotite and Pargasite Specific Gravity

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