Natrolite and Uvite Physical Properties

Natrolite

Uvite

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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

2.20-2.262.97-3.14

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

Uneven, Conchoidal, Brittle

1.6 Cleavage

Perfect on {110}

{1011} Indistinct

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

Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Natrolite and Uvite Chemical Formula

While comparing Natrolite and Uvite 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 Uvite 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 Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Natrolite and Uvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Uvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Uvite Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 2.97-3.14 whereas that of Uvite is 2.97-3.14.