Brucite and Cinnabar Physical Properties
Tenacity
Sectile
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
Fracture
Irregular
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
Perfect on {0001}
Prismatic {10 1 0}, perfect
Chemical Composition
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Brucite and Cinnabar Chemical Formula
While comparing Brucite 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 Brucite and Cinnabar chemical formula.
- Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Brucite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brucite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brucite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Brucite is 2 whereas that of Cinnabar is 2.