Fluorite and Natrolite Physical Properties

Fluorite

Natrolite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

slightly water soluble and in hot hydrochloric acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.00-3.252.20-2.26

1 7.18

1.5 Fracture

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

Uneven, Brittle, Metallic, Gemstones (2009)

1.6 Cleavage

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

Perfect on {110}

1.7 Mohs Hardness

45-5.5

2 10

1.8 Chemical Composition

CaF₂

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

Fluorite and Natrolite Chemical Formula

While comparing Fluorite and Natrolite 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 Fluorite and Natrolite chemical formula.

Chemical formula of Fluorite- CaF₂
Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Fluorite and Natrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fluorite and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fluorite and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Fluorite is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.