Natrolite and Covellite Physical Properties

Natrolite

Covellite

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1 Physical Properties

1.1 Tenacity

Brittle

Flexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.20-2.264.6-4.76

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

1.6 Cleavage

Perfect on {110}

Perfect on {0001}

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

CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Natrolite and Covellite Chemical Formula

While comparing Natrolite and Covellite 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 Covellite 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 Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Natrolite and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.