Iddingsite and Annabergite Physical Properties

Iddingsite and Annabergite Chemical Formula

While comparing Iddingsite and Annabergite 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 Iddingsite and Annabergite chemical formula.

• Chemical formula of Iddingsite- MgO.Fe2O3.3SiO2•4(H2O)
• Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

Iddingsite and Annabergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iddingsite and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iddingsite and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Iddingsite is 3.07 whereas that of Annabergite is 3.07.