Sugilite and Sinhalite Physical Properties
Specific Gravity
2.69-2.79
3.46-3.50
Fracture
Conchoidal
Conchoidal
Cleavage
Poor on {0001}
Perfect
Mohs Hardness
5.5-6.5
6-7
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sugilite and Sinhalite Chemical Formula
While comparing Sugilite and Sinhalite 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 Sugilite and Sinhalite chemical formula.
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Sinhalite- MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sugilite and Sinhalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sugilite and Sinhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Sinhalite Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 3.46-3.50 whereas that of Sinhalite is 3.46-3.50.