Pargasite and Nepouite Physical Properties

Pargasite

Nepouite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.263.18-3.24

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Not Available

1.6 Cleavage

{110} perfect

perfect on {001}

1.7 Mohs Hardness

5-62

2 10

1.8 Chemical Composition

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

Not Available

Pargasite and Nepouite Chemical Formula

While comparing Pargasite and Nepouite 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 Nepouite 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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Pargasite and Nepouite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Nepouite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Nepouite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 3.18-3.24 whereas that of Nepouite is 3.18-3.24.