Esperite and Common Opal Physical Properties

Esperite and Common Opal Chemical Formula

While comparing Esperite and Common Opal 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 Esperite and Common Opal chemical formula.

• Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
• Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Esperite and Common Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Esperite and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Esperite is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.