Pollucite and Dolomite Physical Properties
Solubility
Readily soluble in HF
Poorly soluble in dilute HCl
Specific Gravity
2.86-2.94
2.80-2.95
Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
None observed
Perfect on {10 1 1}, rhombohedral cleavage
Mohs Hardness
6.5-7
3.5-4
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pollucite and Dolomite Chemical Formula
While comparing Pollucite and Dolomite 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 Dolomite 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 Dolomite- CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pollucite and Dolomite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Dolomite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Dolomite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.80-2.95 whereas that of Dolomite is 2.80-2.95.