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Shigaite and Spinel Physical Properties


Spinel and Shigaite Physical Properties


Physical Properties

Tenacity
Moderately flexible   
Not Available   

Solubility
Not Available   
none   

Durability
Not Available   
Not Available   

Specific Gravity
2.32   
3.64-3.66   

Fracture
Flexible Flexible fragments.   
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Perfect on {0001}   
None, but may exhibit slight parting   

Mohs Hardness
2   
8   

Chemical Composition
Not Available   
MgAl2O4   

Optical Properties >>
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Shigaite and Spinel Chemical Formula

While comparing Shigaite 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 Shigaite and Spinel chemical formula.

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Shigaite and Spinel Specific Gravity

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

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