Spodumene and Pollucite Physical Properties
Solubility
insoluble
Readily soluble in HF
Durability
Not Available
Not Available
Specific Gravity
3.15-3.21
2.86-2.94
Fracture
Uneven, Subconchoidal, Gemstones (2009)
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
None observed
Chemical Composition
LiAlSi2O6
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Spodumene and Pollucite Chemical Formula
While comparing Spodumene and Pollucite 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 Pollucite chemical formula.
- Chemical formula of Spodumene- LiAlSi2O6
- Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Spodumene and Pollucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spodumene and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.