Simpsonite and Umbalite Physical Properties

Simpsonite and Umbalite Chemical Formula

While comparing Simpsonite and Umbalite 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 Simpsonite and Umbalite chemical formula.

• Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
• Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

Simpsonite and Umbalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Simpsonite and Umbalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Simpsonite and Umbalite Optical Properties during the identification of gemstone. Specific gravity of Simpsonite is 3.62-4.33 whereas that of Umbalite is 3.62-4.33.