Opal and Monazite Physical Properties

Opal and Monazite Chemical Formula

While comparing Opal and Monazite 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 Opal and Monazite chemical formula.

• Chemical formula of Opal- SiO₂ · nH₂O
• Chemical formula of Monazite- (Ce,La,Nd,Th)PO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Opal and Monazite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Monazite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Monazite Optical Properties during the identification of gemstone. Specific gravity of Opal is 4.80-5.50 whereas that of Monazite is 4.80-5.50.