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Povondraite
Povondraite

Gahnite
Gahnite



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Povondraite
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Gahnite

Povondraite and Gahnite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.26
Uneven
None
-9999
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
 
-
-
-
4.00-4.62
Conchoidal, Uneven
Indistinct parting on [111]
7.5-8
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Povondraite and Gahnite Chemical Formula

While comparing Povondraite 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 Povondraite and Gahnite chemical formula.

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Povondraite and Gahnite Specific Gravity

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