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