Caledonite and Gahnite Physical Properties

Caledonite and Gahnite Chemical Formula

While comparing Caledonite and Gahnite 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 Caledonite and Gahnite chemical formula.

• Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
• Chemical formula of Gahnite- ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Caledonite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Caledonite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.