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Super Seven Crystals
Super Seven Crystals

Black Opal
Black Opal



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Super Seven Crystals
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Black Opal

Super Seven Crystals and Black Opal Physical Properties

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
2.91.97-2.22
Amber
1 7.18
1.5 Fracture
Fibrous
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
[010] Perfect, [100] Distinct, [011] Distinct
Not Available
1.7 Mohs Hardness
26-6.5
Amber
2 10
1.8 Chemical Composition
Not Available
SiO 2 + H 2OUlrich Henn and Claudio C.

Super Seven Crystals and Black Opal Chemical Formula

While comparing Super Seven Crystals 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 Super Seven Crystals and Black Opal chemical formula.

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

Super Seven Crystals and Black Opal Specific Gravity

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