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Austinite and Spinel Physical Properties


Spinel and Austinite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Easily soluble in cold dilute HCl   
none   

Durability
Not Available   
Not Available   

Specific Gravity
4.12   
3.64-3.66   

Fracture
Brittle, Uneven, Brittle, Uneven   
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)   

Cleavage
Good in two directions parallel to the prism faces {110}   
None, but may exhibit slight parting   

Mohs Hardness
4-4.5   
8   

Chemical Composition
CaZn(AsO4)(OH)   
MgAl2O4   

Optical Properties >>
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Austinite and Spinel Chemical Formula

While comparing Austinite 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 Austinite and Spinel chemical formula.

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Austinite and Spinel Specific Gravity

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

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