Cinnabar and Obsidian Physical Properties
Tenacity
Slightly sectile
Not Available
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
Specific Gravity
2
2.35-2.60
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Conchoidal, ConchoidalWalter Schumann, Conchoidal
Cleavage
Prismatic {10 1 0}, perfect
Not Available
Mohs Hardness
2-2.5
5-5.5
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Cinnabar and Obsidian Chemical Formula
While comparing Cinnabar and Obsidian 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 Obsidian chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Cinnabar and Obsidian Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.