Hollandite and Rutile Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Insoluble in acids
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.05
  
4.20-4.30
  
Fracture
Brittle, Metallic
  
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Distinct / Good, Prismatic
  
{110} good, 100 moderate, parting on {092} and {011}
  
Mohs Hardness
4-6
  
6-6.5
  
Chemical Composition
Ba(Mn++++,Mn++)8O16
  
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Hollandite and Rutile Chemical Formula
While comparing Hollandite and Rutile 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 Rutile chemical formula.
- Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
- Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Hollandite and Rutile Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hollandite and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Rutile Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 4.20-4.30 whereas that of Rutile is 4.20-4.30.