Adamite and Cinnabar Physical Properties

Adamite

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

4.32-4.482

1 7.18

1.5 Fracture

Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

{101}, good; {010}, poor

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

3.52-2.5

2 10

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

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

Adamite and Cinnabar Chemical Formula

While comparing Adamite 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 Adamite and Cinnabar chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Adamite and Cinnabar Specific Gravity

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