Chlorastrolite and Bytownite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.1-3.5
2.72-2.75
Fracture
Granular
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Not Available
Perfect on [001], good on [010], imperfect on [110]
Chemical Composition
Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chlorastrolite and Bytownite Chemical Formula
While comparing Chlorastrolite 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 Chlorastrolite and Bytownite chemical formula.
- Chemical formula of Chlorastrolite- Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chlorastrolite and Bytownite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chlorastrolite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chlorastrolite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Chlorastrolite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.