Hematite 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
5.00-5.30
2
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
None, may show partings on {0001} and {10 1 1}
Prismatic {10 1 0}, perfect
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hematite and Cinnabar Chemical Formula
While comparing Hematite 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 Hematite and Cinnabar chemical formula.
- Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hematite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hematite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Hematite is 2 whereas that of Cinnabar is 2.