Povondraite 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
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
None
Prismatic {10 1 0}, perfect
Mohs Hardness
Not Available
2-2.5
Chemical Composition
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Povondraite and Cinnabar Chemical Formula
While comparing Povondraite 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 Povondraite and Cinnabar chemical formula.
- Chemical formula of Povondraite- NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Povondraite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Povondraite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Povondraite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Povondraite is 2 whereas that of Cinnabar is 2.