Annabergite and Allanite Physical Properties

Annabergite and Allanite Chemical Formula

While comparing Annabergite and Allanite 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 Annabergite and Allanite chemical formula.

• Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
• Chemical formula of Allanite- Ca(Ce,La,Y,Ca)Al2(Fe,Al)Si3O12(OH)

Annabergite and Allanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Allanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Allanite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 3.40-4.20 whereas that of Allanite is 3.40-4.20.