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Amethyst
Amethyst

Spinel
Spinel



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Amethyst
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Spinel

Amethyst and Spinel Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
insoluble in common solvents
-
2.65
Conchoidal, ConchoidalWalter Schumann
Indiscernible
7
SiO2
 
-
-
-
3.64-3.66
Conchoidal, Uneven
None, but may exhibit slight parting
8
MgAl2O4

Amethyst and Spinel Chemical Formula

While comparing Amethyst 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 Amethyst and Spinel chemical formula.

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Amethyst and Spinel Specific Gravity

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