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Taaffeite
Taaffeite

Spinel
Spinel



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Taaffeite
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Spinel

Taaffeite and Spinel Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
none
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.60-3.61
3.64-3.66
1.5 Fracture
Conchoidal
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Imperfect/fair/absent
None, but may exhibit slight parting
1.7 Mohs Hardness
8-8.5
8
1.8 Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
MgAl2O4

Taaffeite and Spinel Chemical Formula

While comparing Taaffeite 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 Taaffeite and Spinel chemical formula.

  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Spinel- MgAl2O4

Taaffeite and Spinel Specific Gravity

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