Opal and Satin Spar Physical Properties

Opal and Satin Spar Chemical Formula

While comparing Opal and Satin Spar 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 Satin Spar chemical formula.

• Chemical formula of Opal- SiO₂ · nH₂O
• Chemical formula of Satin Spar- CaSO4·2H2O

Opal and Satin Spar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Satin Spar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Satin Spar Optical Properties during the identification of gemstone. Specific gravity of Opal is 1.52-1.53 whereas that of Satin Spar is 1.52-1.53.