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Taaffeite
Taaffeite

Powellite
Powellite



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Taaffeite
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Taaffeite and Powellite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.60-3.61
4.23
1.5 Fracture
Conchoidal
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
1.6 Cleavage
Imperfect/fair/absent
{111} Distinct
1.7 Mohs Hardness
8-8.5
3.5-4
1.8 Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Taaffeite and Powellite Chemical Formula

While comparing Taaffeite and Powellite 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 Powellite chemical formula.

  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Powellite- CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Taaffeite and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Taaffeite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Taaffeite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Taaffeite is 4.23 whereas that of Powellite is 4.23.