Poldervaartite and Fire Opal Physical Properties

Poldervaartite and Fire Opal Chemical Formula

While comparing Poldervaartite 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 Poldervaartite and Fire Opal chemical formula.

• Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
• Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Poldervaartite and Fire Opal Specific Gravity

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