Realgar and Fire Opal Physical Properties

Realgar and Fire Opal Chemical Formula

While comparing Realgar 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 Realgar and Fire Opal chemical formula.

• Chemical formula of Realgar- AsSMichael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Realgar and Fire Opal Specific Gravity

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