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Spinel
Spinel

Riebeckite
Riebeckite



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Spinel
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Riebeckite

Spinel and Riebeckite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.64-3.66
Conchoidal, Uneven
None, but may exhibit slight parting
8
MgAl2O4
 
Brittle
-
-
3.28-3.44
Uneven, Splintery
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
5.0-6.0
Na2Fe2+3Fe3+2Si8O22(OH)2

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 Vs Riebeckite during the identification of gemstone. Specific gravity of Spinel is whereas that of Riebeckite is .