Natrolite and Pyrophyllite Physical Properties

Natrolite

Pyrophyllite

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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

2.20-2.262.65-2.90

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

Perfect on {110}

{001} Perfect

1.7 Mohs Hardness

5-5.5Not Available

2 10

1.8 Chemical Composition

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

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Natrolite and Pyrophyllite Chemical Formula

While comparing Natrolite and Pyrophyllite 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 Pyrophyllite 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 Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Natrolite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.