Cinnabar and Astrophyllite 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
3.2-3.4
Fracture
Uneven, Uneven, Gemstones (2009), Brittle
Uneven, Brittle, Metallic
Cleavage
Prismatic {10 1 0}, perfect
Perfect on [001] imperfect on [100]
Chemical Composition
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Cinnabar and Astrophyllite Chemical Formula
While comparing Cinnabar and Astrophyllite 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 Astrophyllite chemical formula.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Cinnabar and Astrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cinnabar and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.