Anorthite and Langbeinite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Slowly dissolves in water
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.77
  
Not Available
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Conchoidal, Brittle
  
Cleavage
Perfect [001] good [010] poor [110]
  
None
  
Mohs Hardness
6-6.5
  
3.5-4
  
Chemical Composition
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Not Available
  
Anorthite and Langbeinite Chemical Formula
While comparing Anorthite and Langbeinite 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 Anorthite and Langbeinite chemical formula.
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
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Anorthite and Langbeinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Anorthite and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is Not Available whereas that of Langbeinite is Not Available.