Mottramite and Hibschite Physical Properties

Mottramite and Hibschite Chemical Formula

While comparing Mottramite and Hibschite 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 Mottramite and Hibschite chemical formula.

• Chemical formula of Mottramite- PbCu(VO4)(OH)
• Chemical formula of Hibschite- Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)

Mottramite and Hibschite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Hibschite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Hibschite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 3.05-3.08 whereas that of Hibschite is 3.05-3.08.