Bytownite and Iolite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.72-2.75
2.6-2.7
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Not Available
Cleavage
Perfect on [001], good on [010], imperfect on [110]
3,1
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)
Mg2Al4Si5O18
Bytownite and Iolite Chemical Formula
While comparing Bytownite and Iolite 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 Iolite 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 Iolite- Mg2Al4Si5O18
Bytownite and Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bytownite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bytownite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Bytownite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.