Allanite and Almandine Physical Properties

Allanite and Almandine Chemical Formula

While comparing Allanite and Almandine 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 Almandine chemical formula.

• Chemical formula of Allanite- Ca(Ce,La,Y,Ca)Al2(Fe,Al)Si3O12(OH)
• Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Allanite and Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Allanite and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Allanite and Almandine Optical Properties during the identification of gemstone. Specific gravity of Allanite is 3.95-4.30 whereas that of Almandine is 3.95-4.30.