Cinnabar and Dioptase Physical Properties
Tenacity
Slightly sectile
Brittle
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
3.25-3.35
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
Prismatic {10 1 0}, perfect
Perfect in three directions
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cinnabar and Dioptase Chemical Formula
While comparing Cinnabar and Dioptase 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 Dioptase chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cinnabar and Dioptase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.