Pollucite and Hanksite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Readily soluble in HF
  
Readily soluble in water
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.86-2.94
  
2.562
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Uneven, Conchoidal, Brittle
  
Cleavage
None observed
  
Good on {0001}
  
Mohs Hardness
6.5-7
  
3-3.5
  
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
  
KNa22(SO4)9(CO3)2Cl
  
Pollucite and Hanksite Chemical Formula
While comparing Pollucite and Hanksite 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 Hanksite 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 Hanksite- KNa22(SO4)9(CO3)2Cl
Pollucite and Hanksite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Hanksite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Hanksite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.562 whereas that of Hanksite is 2.562.