Gibbsite and Bytownite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.35
2.72-2.75
Fracture
Fibrous, Difficult, Fibrous
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
{001} Perfect
Perfect on [001], good on [010], imperfect on [110]
Mohs Hardness
2.5-3
6-6.5
Chemical Composition
Al(OH)3
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Gibbsite and Bytownite Chemical Formula
While comparing Gibbsite 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 Gibbsite and Bytownite chemical formula.
- Chemical formula of Gibbsite- Al(OH)3
- Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Gibbsite and Bytownite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gibbsite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.