Cinnabar and Plumbogummite Physical Properties

Cinnabar

Plumbogummite

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Physical Properties

Tenacity

Slightly sectile

Brittle

Solubility

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

Soluble

Durability

Specific Gravity

24.014

1 7.18

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Fracture

Uneven

Uneven, Conchoidal

Cleavage

Prismatic {10 1 0}, perfect

None

Mohs Hardness

2-2.54-5

2 10

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Chemical Composition

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

PbAl3(PO4)(SO4)(OH)6

Cinnabar and Plumbogummite Chemical Formula

While comparing Cinnabar and Plumbogummite 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 Plumbogummite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Plumbogummite- PbAl3(PO4)(SO4)(OH)6

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Cinnabar and Plumbogummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Plumbogummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Plumbogummite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 4.014 whereas that of Plumbogummite is 4.014.