Quartz and Fire Opal Physical Properties

Quartz and Fire Opal Chemical Formula

While comparing Quartz and Fire 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 Quartz and Fire Opal chemical formula.

• Chemical formula of Quartz- SiO₂
• Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Quartz and Fire Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Quartz and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Quartz and Fire Opal Optical Properties during the identification of gemstone. Specific gravity of Quartz is 1.97-2.22 whereas that of Fire Opal is 1.97-2.22.