Cinnabar and Vivianite 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)
Not Available
Durability
Not Available
Not Available
Specific Gravity
2
2.64-2.70
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
(e.g. graphite).
Cleavage
Prismatic {10 1 0}, perfect
{010} Perfect
Mohs Hardness
2-2.5
Not Available
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Cinnabar and Vivianite Chemical Formula
While comparing Cinnabar and Vivianite 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 Vivianite chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Cinnabar and Vivianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.