Bytownite and Chrome Tourmaline Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.72-2.75
  
2.85-3.35
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on [001], good on [010], imperfect on [110]
  
3,2
  
Mohs Hardness
6-6.5
  
7-7.5
  
Chemical Composition
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Tourmaline is a series of several different minerals with unique chemical formulas.
  
Bytownite and Chrome Tourmaline Chemical Formula
While comparing Bytownite and Chrome Tourmaline 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 Chrome Tourmaline 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 Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.
Bytownite and Chrome Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bytownite and Chrome Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bytownite and Chrome Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Bytownite is 2.85-3.35 whereas that of Chrome Tourmaline is 2.85-3.35.