Padparadscha and Lapis lazuli Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.10
  
2.50-3.00
  
Fracture
Not Available
  
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Not Available
  
3,6
  
Mohs Hardness
9
  
5.5
  
Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
  
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
  
Padparadscha and Lapis lazuli Chemical Formula
While comparing Padparadscha and Lapis lazuli 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 Padparadscha and Lapis lazuli chemical formula.
- Chemical formula of Padparadscha- Al 2O 3Ulrich Henn and Claudio C.
- Chemical formula of Lapis lazuli- The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Padparadscha and Lapis lazuli Specific Gravity
Another important criteria for qualitative analysis of gemstones is Padparadscha and Lapis lazuli Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Padparadscha and Lapis lazuli Optical Properties during the identification of gemstone. Specific gravity of Padparadscha is 2.50-3.00 whereas that of Lapis lazuli is 2.50-3.00.