Moonstone and Common Opal Physical Properties

Moonstone and Common Opal Chemical Formula

While comparing Moonstone 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 Moonstone and Common Opal chemical formula.

• Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
• Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Moonstone and Common Opal Specific Gravity

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