Spinel and Bytownite Physical Properties
Tenacity
Not Available
Brittle
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
2.72-2.75
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
None, but may exhibit slight parting
Perfect on [001], good on [010], imperfect on [110]
Chemical Composition
MgAl2O4
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Spinel and Bytownite Chemical Formula
While comparing Spinel 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 Spinel and Bytownite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Spinel and Bytownite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.