Cinnabar and Epidote Physical Properties
Tenacity
Slightly sectile
-
Solubility
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
-
Specific Gravity
2
3.25-3.50
Fracture
Uneven
Conchoidal, Fibrous
Cleavage
Prismatic {10 1 0}, perfect
{001} perfect and {100} imperfect
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cinnabar and Epidote Chemical Formula
While comparing Cinnabar and Epidote 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 Epidote chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cinnabar and Epidote Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Epidote Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Epidote Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.25-3.50 whereas that of Epidote is 3.25-3.50.