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Precious Opal
Precious Opal
☒

Color change sapphire
Color change sapphire
☒



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Precious Opal
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Color change sapphire

Precious Opal and Color change sapphire 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)
 
-
-
-
-9999
-
None
-9999
Al2O3

Precious Opal and Color change sapphire Chemical Formula

While comparing Precious Opal and Color change sapphire 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 Color change sapphire chemical formula.

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Precious Opal and Color change sapphire Specific Gravity

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