Pollucite and Leucite Physical Properties
Solubility
Readily soluble in HF
-
Specific Gravity
2.86-2.94
2.45-2.50
Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
None observed
Poor on {110}
Mohs Hardness
6.5-7
5.5-6
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pollucite and Leucite Chemical Formula
While comparing Pollucite and Leucite 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 Pollucite and Leucite chemical formula.
- Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Leucite- KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pollucite and Leucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Leucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Leucite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.45-2.50 whereas that of Leucite is 2.45-2.50.