Pargasite and Moldavite Physical Properties

Pargasite

Moldavite

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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

3.04-3.262.32-2.38

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

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

1.6 Cleavage

{110} perfect

Not Available

1.7 Mohs Hardness

5-65.5

2 10

1.8 Chemical Composition

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

SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)

Pargasite and Moldavite Chemical Formula

While comparing Pargasite and Moldavite 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 Moldavite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)

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Pargasite and Moldavite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Moldavite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Moldavite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 2.32-2.38 whereas that of Moldavite is 2.32-2.38.