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Opal
Opal

Milk Opal
Milk Opal



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Opal
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Milk Opal

Opal and Milk Opal Physical Properties

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1 Physical Properties
1.1 Tenacity
BrittleWalter Schumann
Not Available
1.2 Solubility
hot salt water
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.98-2.251.98-2.50
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Conchoidal
1.6 Cleavage
None
Not Available
1.7 Mohs Hardness
5-6.55.5-6.5
Amber
2 10
1.8 Chemical Composition
SiO2 · nH2O
Not Available

Opal and Milk Opal Chemical Formula

While comparing Opal and Milk 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 Milk Opal chemical formula.

  • Chemical formula of Opal- SiO2 · nH2O
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Opal and Milk Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Milk Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Milk Opal Optical Properties during the identification of gemstone. Specific gravity of Opal is 1.98-2.50 whereas that of Milk Opal is 1.98-2.50.