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Zircon
Zircon

Black Opal
Black Opal



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Zircon
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Black Opal

Zircon and Black Opal Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
insoluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.93-4.731.97-2.22
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
{110} and {111}
Not Available
1.7 Mohs Hardness
7.56-6.5
Amber
2 10
1.8 Chemical Composition
ZrSiO4
SiO 2 + H 2OUlrich Henn and Claudio C.

Zircon and Black Opal Chemical Formula

While comparing Zircon 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 Zircon and Black Opal chemical formula.

  • Chemical formula of Zircon- ZrSiO4
  • Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Zircon and Black Opal Specific Gravity

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