Cinnabar and Neptunite Physical Properties

Cinnabar

Neptunite

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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

23.19-3.23

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

Prismatic {10 1 0}, perfect

{110} good

1.7 Mohs Hardness

2-2.55-6

2 10

1.8 Chemical Composition

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

KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Cinnabar and Neptunite Chemical Formula

While comparing Cinnabar and Neptunite 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 Neptunite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

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Cinnabar and Neptunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.