Natrolite and Fluorite Physical Properties

Natrolite

Fluorite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

2.20-2.263.00-3.25

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

Perfect on {110}

Octahedral, perfect on {111}, parting on {011}

1.7 Mohs Hardness

5-5.54

2 10

1.8 Chemical Composition

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

CaF₂

Natrolite and Fluorite Chemical Formula

While comparing Natrolite and Fluorite 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 Fluorite 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 Fluorite- CaF₂

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Natrolite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.