Pollucite and Xonotlite Physical Properties
Solubility
Readily soluble in HF
-
Specific Gravity
2.86-2.94
2.71-2.72
Fracture
Conchoidal, Uneven
Fibrous
Cleavage
None observed
{???} Good
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Pollucite and Xonotlite Chemical Formula
While comparing Pollucite and Xonotlite 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 Xonotlite 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 Xonotlite- Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Pollucite and Xonotlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Xonotlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Xonotlite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.71-2.72 whereas that of Xonotlite is 2.71-2.72.