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Esperite and Kyanite Physical Properties


Kyanite and Esperite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.28-4.42   
3.53-3.65   

Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic   
Splintery, Brittle, Metallic   

Cleavage
Distinct on [010] and [100] poor on [101]   
[100] perfect [010] imperfect with 79° angle between   

Mohs Hardness
5-5.5   
4-7   

Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)   
Not Available   

Optical Properties >>
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Esperite and Kyanite Chemical Formula

While comparing Esperite and Kyanite 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 Esperite and Kyanite chemical formula.

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Esperite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Esperite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.

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