Pollucite and Zincite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Readily soluble in HF
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.86-2.94
  
5.50-5.90
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
None observed
  
On {10 1 0}, perfect; parting on {000 1 }
  
Mohs Hardness
6.5-7
  
4
  
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
  
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Pollucite and Zincite Chemical Formula
While comparing Pollucite and Zincite 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 Zincite 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 Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Pollucite and Zincite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Zincite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 5.50-5.90 whereas that of Zincite is 5.50-5.90.