Pollucite and Hemimorphite Physical Properties
Solubility
Readily soluble in HF
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.86-2.94
3.30-3.50
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
None observed
Perfect on {110}, poor on {101}, {001} rare
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pollucite and Hemimorphite Chemical Formula
While comparing Pollucite and Hemimorphite 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 Hemimorphite 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 Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pollucite and Hemimorphite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.