Purpurite 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
3.2-3.4
2
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
[100] [001] perfect
Prismatic {10 1 0}, perfect
Mohs Hardness
4-4.5
2-2.5
Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Purpurite and Cinnabar Chemical Formula
While comparing Purpurite 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 Purpurite and Cinnabar chemical formula.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Purpurite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Purpurite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 2 whereas that of Cinnabar is 2.