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Marialite and Opal Physical Properties


Opal and Marialite Physical Properties


Physical Properties

Tenacity
Brittle   
BrittleWalter Schumann   

Solubility
Not Available   
hot salt water   

Durability
Not Available   
Not Available   

Specific Gravity
2.50   
1.98-2.25   

Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle   

Cleavage
Distinct on {100} and {110}   
None   

Mohs Hardness
5.5-6   
5-6.5   

Chemical Composition
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)   
SiO2 · nH2O   

Optical Properties >>
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Marialite and Opal Chemical Formula

While comparing Marialite and 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 Marialite and Opal chemical formula.

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Marialite and Opal Specific Gravity

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

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