Pollucite and Riesling Beryl Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Readily soluble in HF
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.86-2.94
  
2.66-2.86
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
None observed
  
Not Available
  
Mohs Hardness
6.5-7
  
7.5-8
  
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
  
Al 2Be 3Si 6O 18Martin H.
  
Pollucite and Riesling Beryl Chemical Formula
While comparing Pollucite and Riesling Beryl 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 Riesling Beryl 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 Riesling Beryl- Al 2Be 3Si 6O 18Martin H.
Pollucite and Riesling Beryl Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Riesling Beryl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Riesling Beryl Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.66-2.86 whereas that of Riesling Beryl is 2.66-2.86.