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Milk Opal
Milk Opal

Gahnite
Gahnite



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Milk Opal
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Gahnite

Milk Opal and Gahnite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO2·nH2O
 
-
-
-
4.00-4.62
Conchoidal, Uneven
Indistinct parting on [111]
7.5-8
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Milk Opal and Gahnite Chemical Formula

While comparing Milk Opal and Gahnite 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 Milk Opal and Gahnite chemical formula.

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Milk Opal and Gahnite Specific Gravity

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