Zinnwaldite and Precious Opal Chemical Formula
While comparing Zinnwaldite and Precious 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 Zinnwaldite and Precious Opal chemical formula.
>- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)