Topaz and Siderite Physical Properties

Topaz and Siderite Chemical Formula

While comparing Topaz 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 Topaz and Siderite chemical formula.

• Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
• Chemical formula of Siderite- Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Topaz and Siderite Specific Gravity

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