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Wulfenite
Wulfenite

Neptunite
Neptunite



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Wulfenite
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Neptunite

Wulfenite and Neptunite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
6.50-7.00
Irregular, Conchoidal
On {011}, distinct; on {001}, {013}, indistinct
3
PbMoO 4Walter Schumann , Gemstones of the world (2001)
 
Brittle
-
-
3.19-3.23
Conchoidal
{110} good
5-6
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael O’Donoghue , Gems, Sixth Edition (2006)

Wulfenite and Neptunite Chemical Formula

While comparing Wulfenite and Neptunite 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 Wulfenite and Neptunite chemical formula.

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Wulfenite and Neptunite Specific Gravity

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