Californite and Common Opal Physical Properties

Californite and Common Opal Chemical Formula

While comparing Californite 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 Californite and Common Opal chemical formula.

• Chemical formula of Californite- Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.
• Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Californite and Common Opal Specific Gravity

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