While comparing Obsidian and Magnesio axinite Axinite Mg 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 Obsidian and Magnesio axinite Axinite Mg chemical formula.
Another important criteria for qualitative analysis of gemstones is Obsidian and Magnesio axinite Axinite Mg Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Obsidian and Magnesio axinite Axinite Mg Optical Properties during the identification of gemstone. Specific gravity of Obsidian is 3.178 whereas that of Magnesio axinite Axinite Mg is 3.178.