Cinnabar and Annabergite Physical Properties
Tenacity
Slightly sectile
Sectile
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
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
Cleavage
Prismatic {10 1 0}, perfect
Perfect on {010}, indistinct on {100} and {102}
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ni3(AsO4)2•8(H2O)
Cinnabar and Annabergite Chemical Formula
While comparing Cinnabar and Annabergite 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 Annabergite chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Cinnabar and Annabergite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.07 whereas that of Annabergite is 3.07.