Poudretteite and Cinnabar Physical Properties

Poudretteite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Brittle

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

2.51-2.532

1 7.18

1.5 Fracture

Conchoidal, Splintery

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

None

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

52-2.5

2 10

1.8 Chemical Composition

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Poudretteite and Cinnabar Chemical Formula

While comparing Poudretteite 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 Poudretteite and Cinnabar chemical formula.

Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Violet Gemstones

Poudretteite Vs Rutilated Quartz

Poudretteite Vs Rubellite

Poudretteite Vs Sapphire

Poudretteite and Cinnabar Specific Gravity

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