Nuummite and Mottramite Physical Properties

Nuummite and Mottramite Chemical Formula

While comparing Nuummite and Mottramite 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 Nuummite and Mottramite chemical formula.

• Chemical formula of Nuummite- Na(Fe,Mg)7(AlSi7O22)(OH)2
• Chemical formula of Mottramite- PbCu(VO4)(OH)

Nuummite and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nuummite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nuummite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Nuummite is 5.9 whereas that of Mottramite is 5.9.