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White Opal
White Opal

Spinel
Spinel



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White Opal
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Spinel

White Opal and Spinel Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
none
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.98-2.503.64-3.66
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
None, but may exhibit slight parting
1.7 Mohs Hardness
5.5-6.58
Amber
2 10
1.8 Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
MgAl2O4

White Opal and Spinel Chemical Formula

While comparing White Opal and Spinel 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 White Opal and Spinel chemical formula.

  • Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  • Chemical formula of Spinel- MgAl2O4

White Opal and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is White Opal and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White Opal and Spinel Optical Properties during the identification of gemstone. Specific gravity of White Opal is 3.64-3.66 whereas that of Spinel is 3.64-3.66.