Chiastolite and Londonite Physical Properties

Chiastolite and Londonite Chemical Formula

While comparing Chiastolite and Londonite 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 Chiastolite and Londonite chemical formula.

• Chemical formula of Chiastolite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006)
• Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)

Chiastolite and Londonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chiastolite and Londonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chiastolite and Londonite Optical Properties during the identification of gemstone. Specific gravity of Chiastolite is 3.34 whereas that of Londonite is 3.34.