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Achroite and Natrolite Physical Properties


Natrolite and Achroite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.90-3.40   
2.20-2.26   

Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   
Uneven, Brittle, Metallic, Gemstones (2009)   

Cleavage
Not Available   
Perfect on {110}   

Mohs Hardness
7-7.5   
5-5.5   

Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.   
Na 2[Al 2Si 3O 10] · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Achroite and Natrolite Chemical Formula

While comparing Achroite 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 Achroite and Natrolite chemical formula.

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Achroite and Natrolite Specific Gravity

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

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