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Vishnevite
Vishnevite
☒

Povondraite
Povondraite
☒



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Vishnevite
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Povondraite

Vishnevite and Povondraite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
Uneven
Perfect
5-6
-
 
-
-
-
3.26
Uneven
None
-9999
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)

Vishnevite and Povondraite Chemical Formula

While comparing Vishnevite and Povondraite 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 Vishnevite and Povondraite chemical formula.

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Vishnevite and Povondraite Specific Gravity

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