Pargasite and Cinnabar Physical Properties

Pargasite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Not Available

Slightly sectile

1.2 Solubility

Not Available

1.04 x 10⁻²⁵ g per 100 ml water (Ksp at 25°C = 2 x 10⁻³²)

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.262

1 7.18

1.5 Fracture

Splintery, Brittle, Uneven

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

{110} perfect

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

5-62-2.5

2 10

1.8 Chemical Composition

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pargasite and Cinnabar Chemical Formula

While comparing Pargasite 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 Pargasite and Cinnabar chemical formula.

Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Pargasite and Cinnabar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pargasite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 2 whereas that of Cinnabar is 2.