Jacobsite 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
Specific Gravity
4.76-5.03
2
Fracture
Conchoidal, Brittle
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
None
Prismatic {10 1 0}, perfect
Mohs Hardness
5.5-6.5
2-2.5
Chemical Composition
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Jacobsite and Cinnabar Chemical Formula
While comparing Jacobsite 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 Jacobsite and Cinnabar chemical formula.
- Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Jacobsite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jacobsite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2 whereas that of Cinnabar is 2.