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Spinel
Spinel

Alexandrite
Alexandrite



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Spinel
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Alexandrite

Spinel and Alexandrite Physical Properties

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
 
-
-
-
3.69-3.81
-
1,1 ; 3,2.
8.5
BeAl 2 O 4

Spinel and Alexandrite Chemical Formula

While comparing Spinel and Alexandrite 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 Alexandrite chemical formula.

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Spinel and Alexandrite Specific Gravity

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