Cinnabar and Wulfenite Physical Properties

Cinnabar

Wulfenite

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1 Physical Properties

1.1 Tenacity

Slightly sectile

Brittle

1.2 Solubility

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

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

26.50-7.00

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Irregular, Brittle, Conchoidal

1.6 Cleavage

Prismatic {10 1 0}, perfect

On {011}, distinct; on {001}, {013}, indistinct

1.7 Mohs Hardness

2-2.53

2 10

1.8 Chemical Composition

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

PbMoO 4Walter Schumann , Gemstones of the world (2001)

Cinnabar and Wulfenite Chemical Formula

While comparing Cinnabar and Wulfenite 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 Wulfenite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)

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Cinnabar and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.