Umbalite and Lepidolite Physical Properties

Umbalite and Lepidolite Chemical Formula

While comparing Umbalite and Lepidolite 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 Lepidolite 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 Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.

Umbalite and Lepidolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Umbalite and Lepidolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Umbalite and Lepidolite Optical Properties during the identification of gemstone. Specific gravity of Umbalite is 2.80-2.90 whereas that of Lepidolite is 2.80-2.90.