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Spinel
Spinel

Rutile
Rutile



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Spinel
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Rutile

Spinel and Rutile 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
 
-
Insoluble in acids
-
4.20-4.30
Uneven, Conchoidal
{110} good, 100 moderate, parting on {092} and {011}
6-6.5
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Spinel and Rutile Chemical Formula

While comparing Spinel and Rutile 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 Rutile chemical formula.

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Spinel and Rutile Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel Vs Rutile during the identification of gemstone. Specific gravity of Spinel is whereas that of Rutile is .