Common Opal and Hydrogrossular Physical Properties

Common Opal and Hydrogrossular Chemical Formula

While comparing Common Opal and Hydrogrossular 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 Common Opal and Hydrogrossular chemical formula.

• Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
• Chemical formula of Hydrogrossular- hydrogrossular Massive vein s of opaque Grossular Garnet that resembles Jade . It is white to light green in color, and may be colored in a white, green, and pink combination. Hydrogrossular is often regarded as a variety of Grossular, but it is scientifi

Common Opal and Hydrogrossular Specific Gravity

Another important criteria for qualitative analysis of gemstones is Common Opal and Hydrogrossular Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Common Opal and Hydrogrossular Optical Properties during the identification of gemstone. Specific gravity of Common Opal is 3.25-3.40 whereas that of Hydrogrossular is 3.25-3.40.