Pargasite and Fibrolite Physical Properties

Pargasite

Fibrolite

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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

3.04-3.263.14-3.25

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

{110} perfect

Not Available

1.7 Mohs Hardness

5-66-7

2 10

1.8 Chemical Composition

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

Al 2SiO 5Arthur Thomas , Gemstones (2009)

Pargasite and Fibrolite Chemical Formula

While comparing Pargasite and Fibrolite 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 Fibrolite chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)

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Pargasite and Fibrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.