Natrolite and Pargasite Physical Properties

Natrolite

Pargasite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.20-2.263.04-3.26

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

Splintery, Brittle, Uneven

1.6 Cleavage

Perfect on {110}

{110} perfect

1.7 Mohs Hardness

5-5.55-6

2 10

1.8 Chemical Composition

Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Natrolite and Pargasite Chemical Formula

While comparing Natrolite 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 Natrolite and Pargasite chemical formula.

Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael 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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Natrolite and Pargasite Specific Gravity

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