Apophyllite KF and Fire Opal Physical Properties

Apophyllite KF and Fire Opal Chemical Formula

While comparing Apophyllite KF 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 Apophyllite KF and Fire Opal chemical formula.

• Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
• Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Apophyllite KF and Fire Opal Specific Gravity

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