Spinel and Powellite Physical Properties
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
4.23
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
None, but may exhibit slight parting
{111} Distinct
Chemical Composition
MgAl2O4
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Spinel and Powellite Chemical Formula
While comparing Spinel 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 Spinel and Powellite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Spinel and Powellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Powellite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 4.23 whereas that of Powellite is 4.23.