Zoisite and Umbalite Physical Properties

Zoisite and Umbalite Chemical Formula

While comparing Zoisite 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 Zoisite and Umbalite chemical formula.

• Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
• Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)

Zoisite and Umbalite Specific Gravity

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