Plumbogummite and Chrome-Chalcedony Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.014
  
2.55-2.70
  
Fracture
Uneven, Conchoidal
  
Not Available
  
Cleavage
None
  
Not Available
  
Mohs Hardness
4-5
  
6.5-7
  
Chemical Composition
Not Available
  
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
  
Plumbogummite and Chrome-Chalcedony Chemical Formula
While comparing Plumbogummite 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 Plumbogummite and Chrome-Chalcedony chemical formula.
>- Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Plumbogummite and Chrome-Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Plumbogummite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Plumbogummite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Plumbogummite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.