Fayalite and Brookite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.392
  
3.87-4.14
  
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
{010} moderate, {100} imperfect
  
Poor on {120}, in traces on {001}
  
Mohs Hardness
6.5-7
  
5.5-6
  
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Fayalite and Brookite Chemical Formula
While comparing Fayalite and Brookite 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 Fayalite and Brookite chemical formula.
- Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fayalite and Brookite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Fayalite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.