Pectolite and Cinnabar Physical Properties
Tenacity
Brittle
Slightly sectile
Solubility
-
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Specific Gravity
2.74-2.90
2
Fracture
Uneven, Splintery
Uneven
Cleavage
Perfect on {100} and {001}
Prismatic {10 1 0}, perfect
Mohs Hardness
4.5-5
2-2.5
Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pectolite and Cinnabar Chemical Formula
While comparing Pectolite 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 Pectolite and Cinnabar chemical formula.
- Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pectolite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pectolite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 2 whereas that of Cinnabar is 2.