Poldervaartite and Melanite Physical Properties

Poldervaartite and Melanite Chemical Formula

While comparing Poldervaartite and Melanite 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 Melanite chemical formula.

• Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
• Chemical formula of Melanite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Poldervaartite and Melanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Melanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Melanite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 3.70-4.10 whereas that of Melanite is 3.70-4.10.