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Opal
Opal

Opal
Opal



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Opal and Opal Physical Properties

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1 Physical Properties
1.1 Tenacity
BrittleWalter Schumann
BrittleWalter Schumann
1.2 Solubility
hot salt water
hot salt water
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.98-2.25
1.98-2.25
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
1.6 Cleavage
None
None
1.7 Mohs Hardness
5-6.5
5-6.5
1.8 Chemical Composition
SiO2 · nH2O
SiO2 · nH2O

Opal and Opal Chemical Formula

While comparing Opal 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 Opal and Opal chemical formula.

  • Chemical formula of Opal- SiO2 · nH2O
  • Chemical formula of Opal- SiO2 · nH2O

Opal and Opal Specific Gravity

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