Tigers Eye and Lapis lazuli Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.58-2.64
  
2.50-3.00
  
Fracture
Gems, Sixth Edition (2006)
  
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Indiscernible
  
3,6
  
Mohs Hardness
6.5-7
  
5.5
  
Chemical Composition
SiO2
  
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
  
Tigers Eye and Lapis lazuli Chemical Formula
While comparing Tigers Eye 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 Tigers Eye and Lapis lazuli chemical formula.
- Chemical formula of Tigers Eye- SiO2
- Chemical formula of Lapis lazuli- The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Tigers Eye and Lapis lazuli Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tigers Eye and Lapis lazuli Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tigers Eye and Lapis lazuli Optical Properties during the identification of gemstone. Specific gravity of Tigers Eye is 2.50-3.00 whereas that of Lapis lazuli is 2.50-3.00.