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Opal
Opal

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Marble



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Opal and Marble 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
1.98-2.25
Not Available
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Not Available
1.6 Cleavage
None
Not Available
1.7 Mohs Hardness
5-6.5
Not Available
1.8 Chemical Composition
SiO2 · nH2O
Not Available

Opal and Marble Chemical Formula

While comparing Opal and Marble 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 Marble chemical formula.

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

Another important criteria for qualitative analysis of gemstones is Opal and Marble Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Marble Optical Properties during the identification of gemstone. Specific gravity of Opal is Not Available whereas that of Marble is Not Available.