Cinnabar and Childrenite Physical Properties

Cinnabar

Childrenite

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1 Physical Properties

1.1 Tenacity

Slightly sectile

Not Available

1.2 Solubility

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

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

23.06-3.25

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven

1.6 Cleavage

Prismatic {10 1 0}, perfect

Poor/indistinct on {100}

1.7 Mohs Hardness

2-2.54.5-5

2 10

1.8 Chemical Composition

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

(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)

Cinnabar and Childrenite Chemical Formula

While comparing Cinnabar and Childrenite 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 Childrenite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)

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Cinnabar and Childrenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.