Hercynite and Cinnabar Physical Properties
Tenacity
Not Available
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
Fracture
ConchoidalGemdat.org, Uneven
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
Prismatic {10 1 0}, perfect
Mohs Hardness
7.5-8
2-2.5
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hercynite and Cinnabar Chemical Formula
While comparing Hercynite 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 Hercynite and Cinnabar chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hercynite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2 whereas that of Cinnabar is 2.