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Poudretteite
Poudretteite

Gahnite
Gahnite



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Poudretteite
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Gahnite

Poudretteite and Gahnite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.51-2.53
Conchoidal, Splintery
None
5
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
4.00-4.62
Conchoidal, Uneven
Indistinct parting on [111]
7.5-8
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Poudretteite and Gahnite Chemical Formula

While comparing Poudretteite 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 Poudretteite and Gahnite chemical formula.

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Poudretteite and Gahnite Specific Gravity

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