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Powellite and Spinel Physical Properties


Spinel and Powellite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
none   

Durability
Not Available   
Not Available   

Specific Gravity
4.23   
3.64-3.66   

Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
{111} Distinct   
None, but may exhibit slight parting   

Mohs Hardness
3.5-4   
8   

Chemical Composition
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)   
MgAl2O4   

Optical Properties >>
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Powellite and Spinel Chemical Formula

While comparing Powellite 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 Powellite and Spinel chemical formula.

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Powellite and Spinel Specific Gravity

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

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Blue Gemstones


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