Childrenite and Cinnabar Physical Properties
Tenacity
Not Available
Slightly sectile
Solubility
Soluble
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
3.06-3.25
2
Fracture
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
Poor/indistinct on {100}
Prismatic {10 1 0}, perfect
Mohs Hardness
4.5-5
2-2.5
Chemical Composition
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Childrenite and Cinnabar Chemical Formula
While comparing Childrenite 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 Childrenite and Cinnabar chemical formula.
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Childrenite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Childrenite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Childrenite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Childrenite is 2 whereas that of Cinnabar is 2.