Spodumene and Petalite Physical Properties
Solubility
insoluble
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.15-3.21
2.40
Fracture
Uneven, Subconchoidal, Gemstones (2009)
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Cleavage
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
Perfect on {001}, poor on {201} with 38.5° angle between the two
Chemical Composition
LiAlSi2O6
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spodumene and Petalite Chemical Formula
While comparing Spodumene and Petalite 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 Spodumene and Petalite chemical formula.
- Chemical formula of Spodumene- LiAlSi2O6
- Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spodumene and Petalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spodumene and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Petalite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.40 whereas that of Petalite is 2.40.