Langbeinite and Meionite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Slowly dissolves in water
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.78
  
Fracture
Conchoidal, Brittle
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
None
  
{???} Distinct, {???} Indistinct
  
Mohs Hardness
3.5-4
  
5-6
  
Chemical Composition
Not Available
  
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
  
Langbeinite and Meionite Chemical Formula
While comparing Langbeinite 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 Langbeinite and Meionite chemical formula.
>- Chemical formula of Meionite- 3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
Langbeinite and Meionite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Langbeinite and Meionite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Langbeinite and Meionite Optical Properties during the identification of gemstone. Specific gravity of Langbeinite is 2.78 whereas that of Meionite is 2.78.