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Common Opal
Common Opal

Zircon
Zircon



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Common Opal
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Zircon

Common Opal and Zircon Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
insoluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.98-2.503.93-4.73
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Not Available
{110} and {111}
1.7 Mohs Hardness
5.5-6.57.5
Amber
2 10
1.8 Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
ZrSiO4

Common Opal and Zircon Chemical Formula

While comparing Common Opal and Zircon 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 Common Opal and Zircon chemical formula.

  • Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  • Chemical formula of Zircon- ZrSiO4

Common Opal and Zircon Specific Gravity

Another important criteria for qualitative analysis of gemstones is Common Opal and Zircon Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Common Opal and Zircon Optical Properties during the identification of gemstone. Specific gravity of Common Opal is 3.93-4.73 whereas that of Zircon is 3.93-4.73.