While comparing Plasma and Tanzanite 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 Plasma and Tanzanite chemical formula.
Another important criteria for qualitative analysis of gemstones is Plasma and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plasma and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Plasma is 3.35 whereas that of Tanzanite is 3.35.