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Gahnite
Gahnite

White Opal
White Opal



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Gahnite
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White Opal

Gahnite and White Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.00-4.62
Conchoidal, Uneven
Indistinct parting on [111]
7.5-8
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Gahnite and White Opal Chemical Formula

While comparing Gahnite 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 Gahnite and White Opal chemical formula.

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Gahnite and White Opal Specific Gravity

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