Cinnabar and Peridot 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
1.54-1.55
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Conchoidal
Cleavage
Prismatic {10 1 0}, perfect
Poor
Mohs Hardness
2-2.5
6.5-7
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe)2SiO4
Cinnabar and Peridot Chemical Formula
While comparing Cinnabar and Peridot 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 Peridot chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Peridot- (Mg,Fe)2SiO4
Cinnabar and Peridot Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Peridot Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 1.54-1.55 whereas that of Peridot is 1.54-1.55.