Phosphosiderite and Londonite Physical Properties

Phosphosiderite and Londonite Chemical Formula

While comparing Phosphosiderite 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 Phosphosiderite and Londonite chemical formula.

• Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
• Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)

Phosphosiderite and Londonite Specific Gravity

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