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Ajoite
Ajoite

Spinel
Spinel



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Ajoite
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Spinel

Ajoite and Spinel Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Decomposed by acids
none
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.96
3.64-3.66
1.5 Fracture
Not Available
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Perfect on {010}
None, but may exhibit slight parting
1.7 Mohs Hardness
5
8
1.8 Chemical Composition
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
MgAl2O4

Ajoite and Spinel Chemical Formula

While comparing Ajoite 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 Ajoite and Spinel chemical formula.

  • Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
  • Chemical formula of Spinel- MgAl2O4

Ajoite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ajoite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ajoite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Ajoite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.