Pargasite and Wulfenite Physical Properties

Pargasite

Wulfenite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.266.50-7.00

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Irregular, Brittle, Conchoidal

1.6 Cleavage

{110} perfect

On {011}, distinct; on {001}, {013}, indistinct

1.7 Mohs Hardness

5-63

2 10

1.8 Chemical Composition

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

PbMoO 4Walter Schumann , Gemstones of the world (2001)

Pargasite and Wulfenite Chemical Formula

While comparing Pargasite and Wulfenite 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 Wulfenite chemical formula.

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

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Pargasite and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.