Chlorapatite and Lapis lazuli Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.17-3.18
  
2.50-3.00
  
Fracture
Not Available
  
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Not Available
  
3,6
  
Mohs Hardness
Not Available
  
5.5
  
Chemical Composition
Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)
  
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
  
Chlorapatite and Lapis lazuli Chemical Formula
While comparing Chlorapatite 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 Chlorapatite and Lapis lazuli chemical formula.
- Chemical formula of Chlorapatite- Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)
- Chemical formula of Lapis lazuli- The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Chlorapatite and Lapis lazuli Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chlorapatite and Lapis lazuli Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chlorapatite and Lapis lazuli Optical Properties during the identification of gemstone. Specific gravity of Chlorapatite is 2.50-3.00 whereas that of Lapis lazuli is 2.50-3.00.