Cinnabar and Ettringite Physical Properties
Tenacity
Slightly sectile
Not Available
Solubility
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Partially soluble in water
Durability
Not Available
Not Available
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Not Available
Cleavage
Prismatic {10 1 0}, perfect
Perfect on {10 1 0}
Mohs Hardness
2-2.5
2-2.5
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Cinnabar and Ettringite Chemical Formula
While comparing Cinnabar and Ettringite 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 Ettringite chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Cinnabar and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 1.77 whereas that of Ettringite is 1.77.