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Kyanite and Eosphorite Physical Properties


Eosphorite and Kyanite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.53-3.65   
3.05-3.08   

Fracture
Splintery, Brittle, Metallic   
Subconchoidal, Uneven, Conchoidal, Uneven   

Cleavage
[100] perfect [010] imperfect with 79° angle between   
Poor on {100}   

Mohs Hardness
4-7   
5   

Chemical Composition
Not Available   
Mn2+ Al(PO 4)(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Kyanite and Eosphorite Chemical Formula

While comparing Kyanite and Eosphorite 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 Eosphorite chemical formula.

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Kyanite and Eosphorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Eosphorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Eosphorite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 3.05-3.08 whereas that of Eosphorite is 3.05-3.08.

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