Cinnabar and Chalcedony 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
2.55-2.70
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Cleavage
Prismatic {10 1 0}, perfect
Absent
Mohs Hardness
2-2.5
6.5-7
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO2
Cinnabar and Chalcedony Chemical Formula
While comparing Cinnabar and Chalcedony 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 Chalcedony chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Chalcedony- SiO2
Cinnabar and Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.