Phosphosiderite and Afghanite Physical Properties

Phosphosiderite and Afghanite Chemical Formula

While comparing Phosphosiderite and Afghanite 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 Phosphosiderite and Afghanite chemical formula.

• Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
• Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Phosphosiderite and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.