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Opal
Opal

Sylvite
Sylvite



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Opal
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Sylvite

Opal and Sylvite Physical Properties

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1 Physical Properties
1.1 Tenacity
BrittleWalter Schumann
Brittle
1.2 Solubility
hot salt water
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.98-2.251.993
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Uneven, Brittle
1.6 Cleavage
None
Perfect on [100], [010], [001]
1.7 Mohs Hardness
5-6.52.5
Amber
2 10
1.8 Chemical Composition
SiO2 · nH2O
Not Available

Opal and Sylvite Chemical Formula

While comparing Opal and Sylvite 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 Sylvite chemical formula.

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

Another important criteria for qualitative analysis of gemstones is Opal and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Opal is 1.993 whereas that of Sylvite is 1.993.