Black Opal and Hyalite Physical Properties

Black Opal and Hyalite Chemical Formula

While comparing Black Opal and Hyalite 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 Black Opal and Hyalite chemical formula.

• Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
• Chemical formula of Hyalite- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Black Opal and Hyalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Black Opal and Hyalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Hyalite Optical Properties during the identification of gemstone. Specific gravity of Black Opal is Not Available whereas that of Hyalite is Not Available.