Langbeinite and Sugilite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Slowly dissolves in water
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.69-2.79
  
Fracture
Conchoidal, Brittle
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
None
  
Poor on {0001}
  
Mohs Hardness
3.5-4
  
5.5-6.5
  
Chemical Composition
Not Available
  
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Langbeinite and Sugilite Chemical Formula
While comparing Langbeinite and Sugilite 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 Langbeinite and Sugilite chemical formula.
>- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Langbeinite and Sugilite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Langbeinite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Langbeinite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Langbeinite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.