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Erythrite and Spinel Physical Properties


Spinel and Erythrite Physical Properties


Physical Properties

Tenacity
Sectile   
Not Available   

Solubility
Not Available   
none   

Durability
Not Available   
Not Available   

Specific Gravity
3.06   
3.64-3.66   

Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).   
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Perfect on {010}; poor on {100} and { 1 02}.   
None, but may exhibit slight parting   

Mohs Hardness
Not Available   
8   

Chemical Composition
Co3(AsO4)2•8(H2O)   
MgAl2O4   

Optical Properties >>
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Erythrite and Spinel Chemical Formula

While comparing Erythrite and Spinel 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 Erythrite and Spinel chemical formula.

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Erythrite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Erythrite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.

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Red Gemstones


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