Bytownite and Fibrolite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.72-2.75
  
3.14-3.25
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on [001], good on [010], imperfect on [110]
  
Not Available
  
Mohs Hardness
6-6.5
  
6-7
  
Chemical Composition
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Al 2SiO 5Arthur Thomas , Gemstones (2009)
  
Bytownite and Fibrolite Chemical Formula
While comparing Bytownite and Fibrolite 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 Fibrolite 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 Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)
Bytownite and Fibrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bytownite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bytownite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Bytownite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.