Ludlamite and Bytownite Physical Properties
Specific Gravity
3.1-3.2
2.72-2.75
Cleavage
Vitreous, pearly on cleavage
Perfect on [001], good on [010], imperfect on [110]
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Ludlamite and Bytownite Chemical Formula
While comparing Ludlamite 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 Ludlamite and Bytownite chemical formula.
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Ludlamite and Bytownite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ludlamite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.