Moldavite and Bytownite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.32-2.38
  
2.72-2.75
  
Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Not Available
  
Perfect on [001], good on [010], imperfect on [110]
  
Mohs Hardness
5.5
  
6-6.5
  
Chemical Composition
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
  
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Moldavite and Bytownite Chemical Formula
While comparing Moldavite 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 Moldavite and Bytownite chemical formula.
- Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
- Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Moldavite and Bytownite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Moldavite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moldavite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Moldavite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.