Hollandite and Glaucophane Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.05
  
3-3.15
  
Fracture
Brittle, Metallic
  
Conchoidal, Brittle, Conchoidal
  
Cleavage
Distinct / Good, Prismatic
  
Good on [110] and on [001]
  
Mohs Hardness
4-6
  
6.0-6.5
  
Chemical Composition
Ba(Mn++++,Mn++)8O16
  
[ ]Na2(Mg3Al2)Si8O22(OH)2
  
Hollandite and Glaucophane Chemical Formula
While comparing Hollandite and Glaucophane 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 Hollandite and Glaucophane chemical formula.
- Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
- Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Hollandite and Glaucophane Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hollandite and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 3-3.15 whereas that of Glaucophane is 3-3.15.