Cinnabar and Diamond 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)
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2
  
3.50-3.53
  
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
  
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
  
Cleavage
Prismatic {10 1 0}, perfect
  
111 (perfect in four directions)
  
Mohs Hardness
2-2.5
  
10
  
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
C
  
Cinnabar and Diamond Chemical Formula
While comparing Cinnabar and Diamond 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 Diamond chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Diamond- C
Cinnabar and Diamond Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Diamond Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Diamond Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.50-3.53 whereas that of Diamond is 3.50-3.53.