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White Opal
White Opal

Oligoclase
Oligoclase



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White Opal
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Oligoclase

White Opal and Oligoclase 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
1.98-2.502.62-2.67
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
1.6 Cleavage
Not Available
From the Greek, oligos and kasein, little cleavage.
1.7 Mohs Hardness
5.5-6.56-6.5
Amber
2 10
1.8 Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

White Opal and Oligoclase Chemical Formula

While comparing White Opal and Oligoclase 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 Oligoclase chemical formula.

  • Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  • Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

White Opal and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is White Opal and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White Opal and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of White Opal is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.