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Precious Opal
Precious Opal

White Opal
White Opal



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Precious Opal
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White Opal

Precious Opal and White Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 · nH 2OGemdat.org , Management Team (2012)
 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Precious Opal and White Opal Chemical Formula

While comparing Precious Opal and White 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 Precious Opal and White Opal chemical formula.

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Precious Opal and White Opal Specific Gravity

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