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Onyx and Eosphorite Physical Properties


Eosphorite and Onyx Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.55-2.70   
3.05-3.08   

Fracture
Not Available   
Subconchoidal, Uneven, Conchoidal, Uneven   

Cleavage
Indiscernible   
Poor on {100}   

Mohs Hardness
6.5-7   
5   

Chemical Composition
SiO2   
Mn2+ Al(PO 4)(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Onyx and Eosphorite Chemical Formula

While comparing Onyx 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 Onyx and Eosphorite chemical formula.

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Onyx and Eosphorite Specific Gravity

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

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