Pargasite and Starlite Physical Properties

Pargasite

Starlite

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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

3.04-3.263.91-4.73

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{110} perfect

Not Available

1.7 Mohs Hardness

5-66.5-7.5

2 10

1.8 Chemical Composition

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

ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Pargasite and Starlite Chemical Formula

While comparing Pargasite and Starlite 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 Starlite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Starlite- ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Pargasite and Starlite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Starlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Starlite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 3.91-4.73 whereas that of Starlite is 3.91-4.73.