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Spinel and Riebeckite Physical Properties


Riebeckite and Spinel Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
none   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.64-3.66   
3.28-3.44   

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

Cleavage
None, but may exhibit slight parting   
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}   

Mohs Hardness
8   
5.0-6.0   

Chemical Composition
MgAl2O4   
Not Available   

Optical Properties >>
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Spinel and Riebeckite Chemical Formula

While comparing Spinel and Riebeckite 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 Spinel and Riebeckite chemical formula.

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Spinel and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.

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