Chrome-Chalcedony and Allanite Physical Properties

Chrome-Chalcedony and Allanite Chemical Formula

While comparing Chrome-Chalcedony 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 Chrome-Chalcedony and Allanite chemical formula.

• Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
• Chemical formula of Allanite- Ca(Ce,La,Y,Ca)Al2(Fe,Al)Si3O12(OH)

Chrome-Chalcedony and Allanite Specific Gravity

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