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Blue quartz
Blue quartz

Common Opal
Common Opal



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Blue quartz
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Common Opal

Blue quartz and Common Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
-9999
SiO2 with dumortierite
 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Blue quartz and Common Opal Chemical Formula

While comparing Blue quartz and Common 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 Blue quartz and Common Opal chemical formula.

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Blue quartz and Common Opal Specific Gravity

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