Forsterite and Cinnabar 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
3.23-3.26
2
Fracture
Conchoidal
Uneven
Cleavage
Perfect on {010} imperfect on {100}
Prismatic {10 1 0}, perfect
Mohs Hardness
6.5-7
2-2.5
Chemical Composition
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Forsterite and Cinnabar Chemical Formula
While comparing Forsterite 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 Forsterite and Cinnabar chemical formula.
- Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Forsterite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Forsterite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 2 whereas that of Cinnabar is 2.