Cinnabar and Omphacite 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
  
3.16-3.43
  
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Prismatic {10 1 0}, perfect
  
{110} Good, {110} Good
  
Mohs Hardness
2-2.5
  
5-6
  
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
  
Cinnabar and Omphacite Chemical Formula
While comparing Cinnabar and Omphacite 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 Omphacite chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Cinnabar and Omphacite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.