While comparing Tinzenite and Siderite 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 Tinzenite and Siderite chemical formula.
Another important criteria for qualitative analysis of gemstones is Tinzenite and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tinzenite and Siderite Optical Properties during the identification of gemstone. Specific gravity of Tinzenite is 3.83-3.89 whereas that of Siderite is 3.83-3.89.