Poldervaartite and Grandidierite Physical Properties

Poldervaartite and Grandidierite Chemical Formula

While comparing Poldervaartite and Grandidierite 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 Poldervaartite and Grandidierite chemical formula.

• Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
• Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Poldervaartite and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.