Vanadinite and Cinnabar Physical Properties

Vanadinite

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

6.8-7.12

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

None

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

3-42-2.5

2 10

1.8 Chemical Composition

C20H36

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

Vanadinite and Cinnabar Chemical Formula

While comparing Vanadinite 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 Vanadinite and Cinnabar chemical formula.

Chemical formula of Vanadinite- C20H36
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Vanadinite and Cinnabar Specific Gravity

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