Natrolite and Variscite Physical Properties

Natrolite

Variscite

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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

2.20-2.262.42-2.58

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

Perfect on {110}

[010] perfect

1.7 Mohs Hardness

5-5.54-5

2 10

1.8 Chemical Composition

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

AlPO₄ · 2(H₂O)

Natrolite and Variscite Chemical Formula

While comparing Natrolite and Variscite 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 Variscite 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 Variscite- AlPO₄ · 2(H₂O)

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Natrolite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.