Charlesite and Chrome-Chalcedony Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.79
  
2.55-2.70
  
Fracture
Irregular/uneven, Brittle, Metallic
  
Not Available
  
Cleavage
Perfect on {10bar10}
  
Not Available
  
Mohs Hardness
2.5
  
6.5-7
  
Chemical Composition
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
  
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
  
Charlesite and Chrome-Chalcedony Chemical Formula
While comparing Charlesite and Chrome-Chalcedony 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 Charlesite and Chrome-Chalcedony chemical formula.
- Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
- Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Charlesite and Chrome-Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Charlesite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charlesite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Charlesite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.