Humite and Crystal Opal Physical Properties

Humite and Crystal Opal Chemical Formula

While comparing Humite and Crystal 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 Humite and Crystal Opal chemical formula.

• Chemical formula of Humite- (Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)
• Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Humite and Crystal Opal Specific Gravity

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