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Marble and Black Opal Physical Properties


Black Opal and Marble Physical Properties


Physical Properties

Tenacity
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Solubility
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Durability
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Specific Gravity
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1.97-2.22   

Fracture
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ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
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Mohs Hardness
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6-6.5   

Chemical Composition
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SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Marble and Black Opal Chemical Formula

While comparing Marble and Black 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 Marble and Black Opal chemical formula.

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Marble and Black Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marble and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marble and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Marble is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.

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