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Flint
Flint

Black Opal
Black Opal



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Flint
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Black Opal

Flint and Black Opal Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
Not Available1.97-2.22
Amber
1 7.18
1.5 Fracture
Uneven
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Not Available
Not Available
1.7 Mohs Hardness
Not Available6-6.5
Amber
2 10
1.8 Chemical Composition
Not Available
SiO 2 + H 2OUlrich Henn and Claudio C.

Flint and Black Opal Chemical Formula

While comparing Flint 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 Flint and Black Opal chemical formula.

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  • Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Flint and Black Opal Specific Gravity

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