Rutile and Cobaltite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Insoluble in acids
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.20-4.30
  
6.3
  
Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
  
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
  
{100} Good, {010} Good, {001} Good
  
Mohs Hardness
6-6.5
  
5.5
  
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
CoAsSAnthony et al , Handbook of mineralogy (2001)
  
Rutile and Cobaltite Chemical Formula
While comparing Rutile and Cobaltite 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 Rutile and Cobaltite chemical formula.
- Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
Rutile and Cobaltite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rutile and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Rutile is 6.3 whereas that of Cobaltite is 6.3.