Lapis lazuli and Cryolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.50-3.00
2.97
Fracture
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven
Cleavage
3,6
None observed
Chemical Composition
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Na 3AlF 6Ulrich Henn and Claudio C.
Lapis lazuli and Cryolite Chemical Formula
While comparing Lapis lazuli and Cryolite 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 Cryolite 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
- Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Lapis lazuli and Cryolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 2.97 whereas that of Cryolite is 2.97.