Fayalite and Bytownite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.392
  
2.72-2.75
  
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
{010} moderate, {100} imperfect
  
Perfect on [001], good on [010], imperfect on [110]
  
Mohs Hardness
6.5-7
  
6-6.5
  
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Fayalite and Bytownite Chemical Formula
While comparing Fayalite and Bytownite 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 Bytownite chemical formula.
- Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Fayalite and Bytownite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Fayalite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.