Londonite and Watermelon Tourmaline Physical Properties

Londonite and Watermelon Tourmaline Chemical Formula

While comparing Londonite and Watermelon 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 Londonite and Watermelon Tourmaline chemical formula.

• Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
• Chemical formula of Watermelon Tourmaline- 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.

Londonite and Watermelon Tourmaline Specific Gravity

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