Boulder Opal and Heliotrope Physical Properties

Boulder Opal and Heliotrope Chemical Formula

While comparing Boulder Opal and Heliotrope 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 Boulder Opal and Heliotrope chemical formula.

• Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
• Chemical formula of Heliotrope- SiO2

Boulder Opal and Heliotrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boulder Opal and Heliotrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boulder Opal and Heliotrope Optical Properties during the identification of gemstone. Specific gravity of Boulder Opal is 2.61 whereas that of Heliotrope is 2.61.