Goethite and Erythrite Physical Properties

Goethite and Erythrite Chemical Formula

While comparing Goethite and Erythrite 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 Goethite and Erythrite chemical formula.

• Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
• Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

Goethite and Erythrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 3.06 whereas that of Erythrite is 3.06.