Fire Agate and Common Opal Physical Properties

Fire Agate and Common Opal Chemical Formula

While comparing Fire Agate 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 Fire Agate and Common Opal chemical formula.

• Chemical formula of Fire Agate- SiO 2Arthur Thomas , Gemstones (2009)
• Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Fire Agate and Common Opal Specific Gravity

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