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Augite and Spinel Physical Properties


Spinel and Augite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
none   

Durability
Not Available   
Not Available   

Specific Gravity
3.19-3.56   
3.64-3.66   

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

Cleavage
{110} Perfect, {010} Indistinct   
None, but may exhibit slight parting   

Mohs Hardness
5.5-6   
8   

Chemical Composition
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)   
MgAl2O4   

Optical Properties >>
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Augite and Spinel Chemical Formula

While comparing Augite 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 Augite and Spinel chemical formula.

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Augite and Spinel Specific Gravity

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

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