Realgar and Herderite Physical Properties

Realgar and Herderite Chemical Formula

While comparing Realgar and Herderite 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 Realgar and Herderite chemical formula.

• Chemical formula of Realgar- AsSMichael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Realgar and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Realgar and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Herderite Optical Properties during the identification of gemstone. Specific gravity of Realgar is 2.90-3.02 whereas that of Herderite is 2.90-3.02.