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