Howlite and Riesling Beryl Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.45-2.58
  
2.66-2.86
  
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
None
  
Not Available
  
Mohs Hardness
3-3.5
  
7.5-8
  
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Al 2Be 3Si 6O 18Martin H.
  
Howlite and Riesling Beryl Chemical Formula
While comparing Howlite 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 Howlite and Riesling Beryl chemical formula.
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Riesling Beryl- Al 2Be 3Si 6O 18Martin H.
Howlite and Riesling Beryl Specific Gravity
Another important criteria for qualitative analysis of gemstones is Howlite and Riesling Beryl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Riesling Beryl Optical Properties during the identification of gemstone. Specific gravity of Howlite is 2.66-2.86 whereas that of Riesling Beryl is 2.66-2.86.