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Kyanite and Wulfenite Physical Properties


Wulfenite and Kyanite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.53-3.65   
6.50-7.00   

Fracture
Splintery, Brittle, Metallic   
Irregular, Brittle, Conchoidal   

Cleavage
[100] perfect [010] imperfect with 79° angle between   
On {011}, distinct; on {001}, {013}, indistinct   

Mohs Hardness
4-7   
3   

Chemical Composition
Not Available   
PbMoO 4Walter Schumann , Gemstones of the world (2001)   

Optical Properties >>
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Kyanite and Wulfenite Chemical Formula

While comparing Kyanite and Wulfenite 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 Kyanite and Wulfenite chemical formula.

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Kyanite and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.

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