Umbalite and Powellite Physical Properties

Umbalite and Powellite Chemical Formula

While comparing Umbalite 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 Umbalite and Powellite chemical formula.

• Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
• Chemical formula of Powellite- CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Umbalite and Powellite Specific Gravity

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