Allanite and Chlorite group Physical Properties

Allanite and Chlorite group Chemical Formula

While comparing Allanite and Chlorite group 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 Allanite and Chlorite group chemical formula.

• Chemical formula of Allanite- Ca(Ce,La,Y,Ca)Al2(Fe,Al)Si3O12(OH)
• Chemical formula of Chlorite group- (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6

Allanite and Chlorite group Specific Gravity

Another important criteria for qualitative analysis of gemstones is Allanite and Chlorite group Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Allanite and Chlorite group Optical Properties during the identification of gemstone. Specific gravity of Allanite is 2.6-3.3 whereas that of Chlorite group is 2.6-3.3.