Langbeinite and Caledonite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Slowly dissolves in water
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
5.6-5.76
  
Fracture
Conchoidal, Brittle
  
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
  
Cleavage
None
  
[001] perfect; [100] distinct
  
Mohs Hardness
3.5-4
  
2.5-3
  
Chemical Composition
Not Available
  
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
  
Langbeinite and Caledonite Chemical Formula
While comparing Langbeinite and Caledonite 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 Caledonite chemical formula.
>- Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Langbeinite and Caledonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Langbeinite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Langbeinite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Langbeinite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.