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Natrolite
Natrolite

Apatite
Apatite



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Natrolite
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Apatite

Natrolite and Apatite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.20-2.26
Uneven
Perfect on {110}
5-5.5
Na 2[Al 2Si 3O 10] · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
3.16-3.23
Conchoidal, Uneven, Conchoidal to uneven
[0001] indistinct, [1010] indistinct
5
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Natrolite and Apatite Chemical Formula

While comparing Natrolite and Apatite 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 Apatite chemical formula.

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Natrolite and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite Vs Apatite during the identification of gemstone. Specific gravity of Natrolite is whereas that of Apatite is .