Chalcedony and Hollandite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.70
  
5.05
  
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
  
Brittle, Metallic
  
Cleavage
Absent
  
Distinct / Good, Prismatic
  
Mohs Hardness
6.5-7
  
4-6
  
Chemical Composition
SiO2
  
Ba(Mn++++,Mn++)8O16
  
Chalcedony and Hollandite Chemical Formula
While comparing Chalcedony and Hollandite 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 Chalcedony and Hollandite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
Chalcedony and Hollandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 5.05 whereas that of Hollandite is 5.05.