Foitite and Chrome Tourmaline Physical Properties

Foitite and Chrome Tourmaline Chemical Formula

While comparing Foitite and Chrome Tourmaline 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 Foitite and Chrome Tourmaline chemical formula.

• Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
• Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.

Foitite and Chrome Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Foitite and Chrome Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Foitite and Chrome Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Foitite is 2.85-3.35 whereas that of Chrome Tourmaline is 2.85-3.35.