Bytownite and Ettringite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Partially soluble in water
Durability
Not Available
Not Available
Specific Gravity
2.72-2.75
1.77
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Not Available
Cleavage
Perfect on [001], good on [010], imperfect on [110]
Perfect on {10 1 0}
Mohs Hardness
6-6.5
2-2.5
Chemical Composition
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Bytownite and Ettringite Chemical Formula
While comparing Bytownite and Ettringite 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 Ettringite 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 Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Bytownite and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bytownite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bytownite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Bytownite is 1.77 whereas that of Ettringite is 1.77.