Cinnabar and Lapis lazuli Physical Properties
Tenacity
Slightly sectile
Not Available
Solubility
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Not Available
Durability
Not Available
Not Available
Specific Gravity
2
2.50-3.00
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Prismatic {10 1 0}, perfect
3,6
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Cinnabar and Lapis lazuli Chemical Formula
While comparing Cinnabar 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 Cinnabar and Lapis lazuli chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Lapis lazuli- The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Cinnabar and Lapis lazuli Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Lapis lazuli Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Lapis lazuli Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.50-3.00 whereas that of Lapis lazuli is 2.50-3.00.