Cinnabar and Sard 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
2.58-2.63
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Prismatic {10 1 0}, perfect
Not Available
Mohs Hardness
2-2.5
6.5-7
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2Ulrich Henn and Claudio C.
Cinnabar and Sard Chemical Formula
While comparing Cinnabar and Sard 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 Sard chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Cinnabar and Sard Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Sard Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.58-2.63 whereas that of Sard is 2.58-2.63.