Chrome-Chalcedony and Afghanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
2.55-2.65
Fracture
Not Available
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Cleavage
Not Available
Perfect {10 1 0}
Mohs Hardness
6.5-7
5.5-6
Chemical Composition
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Chrome-Chalcedony and Afghanite Chemical Formula
While comparing Chrome-Chalcedony 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 Chrome-Chalcedony and Afghanite chemical formula.
- Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
- Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Chrome-Chalcedony and Afghanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrome-Chalcedony and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome-Chalcedony and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Chrome-Chalcedony is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.