Periclase and Cinnabar Physical Properties
Tenacity
Brittle
Slightly sectile
Solubility
Not Available
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Durability
Not Available
Not Available
Specific Gravity
3.7-3.9
2
Fracture
Conchoidal, Brittle
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
{001} perfect; {111} imperfect, may exhibit parting on , {011}
Prismatic {10 1 0}, perfect
Mohs Hardness
5.5-6
2-2.5
Chemical Composition
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Periclase and Cinnabar Chemical Formula
While comparing Periclase and Cinnabar 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 Periclase and Cinnabar chemical formula.
- Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Periclase and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Periclase and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Periclase and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Periclase is 2 whereas that of Cinnabar is 2.