Cobaltite and Fayalite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
6.3
  
4.392
  
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
  
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
{100} Good, {010} Good, {001} Good
  
{010} moderate, {100} imperfect
  
Mohs Hardness
5.5
  
6.5-7
  
Chemical Composition
CoAsSAnthony et al , Handbook of mineralogy (2001)
  
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Cobaltite and Fayalite Chemical Formula
While comparing Cobaltite and Fayalite 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 Cobaltite and Fayalite chemical formula.
- Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
- Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Cobaltite and Fayalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cobaltite and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cobaltite and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Cobaltite is 4.392 whereas that of Fayalite is 4.392.