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Natrolite
Natrolite

Biotite
Biotite



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Natrolite
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Biotite

Natrolite and Biotite 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
 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2

Natrolite and Biotite Chemical Formula

While comparing Natrolite and Biotite 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 Biotite chemical formula.

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Natrolite and Biotite Specific Gravity

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