Willemite and Pargasite Physical Properties

Willemite

Pargasite

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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

3.89-4.183.04-3.26

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

Splintery, Brittle, Uneven

1.6 Cleavage

{0001}, {11 2 0} imperfect

{110} perfect

1.7 Mohs Hardness

5.55-6

2 10

1.8 Chemical Composition

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Willemite and Pargasite Chemical Formula

While comparing Willemite 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 Willemite and Pargasite chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Willemite Vs Garnet Color Change

Willemite and Pargasite Specific Gravity

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