Pollucite and Meionite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Readily soluble in HF
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.86-2.94
  
2.78
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
None observed
  
{???} Distinct, {???} Indistinct
  
Mohs Hardness
6.5-7
  
5-6
  
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
  
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
  
Pollucite and Meionite Chemical Formula
While comparing Pollucite and Meionite 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 Meionite 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 Meionite- 3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
Pollucite and Meionite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Meionite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Meionite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.78 whereas that of Meionite is 2.78.