Prasiolite and Pargasite Physical Properties

Prasiolite

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

2.65

3.04-3.26

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

Splintery, Brittle, Uneven

1.6 Cleavage

3,1

{110} perfect

1.7 Mohs Hardness

5-6

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Prasiolite and Pargasite Chemical Formula

While comparing Prasiolite 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 Prasiolite and Pargasite chemical formula.

Chemical formula of Prasiolite- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Prasiolite and Pargasite Specific Gravity

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