While comparing Gaspite and Harlequin 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 Gaspite and Harlequin Opal chemical formula.
Another important criteria for qualitative analysis of gemstones is Gaspite and Harlequin Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gaspite and Harlequin Opal Optical Properties during the identification of gemstone. Specific gravity of Gaspite is 1.98-2.50 whereas that of Harlequin Opal is 1.98-2.50.