Piemontite and Pargasite Physical Properties

Piemontite

Pargasite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.04-3.26

1 7.18

1.5 Fracture

Uneven, Splintery

Splintery, Brittle, Uneven

1.6 Cleavage

[001] good, [100] distinct

{110} perfect

1.7 Mohs Hardness

6-6.55-6

2 10

1.8 Chemical Composition

Not Available

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

Piemontite and Pargasite Chemical Formula

While comparing Piemontite 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 Piemontite 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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Piemontite and Pargasite Specific Gravity

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