Calcite and Fire Opal Physical Properties

Calcite and Fire Opal Chemical Formula

While comparing Calcite 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 Calcite and Fire Opal chemical formula.

• Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
• Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Calcite and Fire Opal Specific Gravity

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