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Topaz
Topaz

White Opal
White Opal



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Topaz
X
White Opal

Topaz and White Opal Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.49-3.57
Subconchoidal, Uneven, Conchoidal
[001] Perfect
8
Al2SiO4(F,OH)2
 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Topaz and White Opal Chemical Formula

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

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Topaz and White Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and White Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz Vs White Opal during the identification of gemstone. Specific gravity of Topaz is whereas that of White Opal is .