Sugilite and Spodumene Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.69-2.79
3.15-3.21
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Subconchoidal, Gemstones (2009)
Cleavage
Poor on {0001}
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
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
LiAlSi2O6
Sugilite and Spodumene Chemical Formula
While comparing Sugilite and Spodumene 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 Spodumene 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 Spodumene- LiAlSi2O6
Sugilite and Spodumene Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sugilite and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.