Calcite and Cinnabar Physical Properties
Tenacity
Brittle
Slightly sectile
Solubility
Soluble
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Specific Gravity
2.67-2.73
2
Fracture
Conchoidal
Uneven
Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
Prismatic {10 1 0}, perfect
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Calcite and Cinnabar Chemical Formula
While comparing Calcite 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 Calcite and Cinnabar chemical formula.
- Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Calcite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Calcite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2 whereas that of Cinnabar is 2.