Langbeinite and Turquoise Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Slowly dissolves in water
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.30-2.90
  
Fracture
Conchoidal, Brittle
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
None
  
Good to perfect_usually N/A
  
Mohs Hardness
3.5-4
  
5-6
  
Chemical Composition
Not Available
  
CuAl6(PO4)4(OH)8 • 4H2O
  
Langbeinite and Turquoise Chemical Formula
While comparing Langbeinite and Turquoise 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 Turquoise chemical formula.
>- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
Langbeinite and Turquoise Specific Gravity
Another important criteria for qualitative analysis of gemstones is Langbeinite and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Langbeinite and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Langbeinite is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.