Goethite and Verdelite Physical Properties

Goethite and Verdelite Chemical Formula

While comparing Goethite and Verdelite 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 Verdelite chemical formula.

• Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
• Chemical formula of Verdelite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Goethite and Verdelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Verdelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Verdelite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.90-3.40 whereas that of Verdelite is 2.90-3.40.