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Natrolite and Boulder Opal Physical Properties


Boulder Opal and Natrolite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.20-2.26   
1.98-2.25   

Fracture
Uneven, Brittle, Metallic, Gemstones (2009)   
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Perfect on {110}   
Not Available   

Mohs Hardness
5-5.5   
5-6.5   

Chemical Composition
Na 2[Al 2Si 3O 10] · 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Natrolite and Boulder Opal Chemical Formula

While comparing Natrolite and Boulder Opal 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 Boulder Opal chemical formula.

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Natrolite and Boulder Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.

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