Childrenite and Cinnabar Physical Properties

Childrenite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Not Available

Slightly sectile

1.3 Solubility

Soluble

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

1.4 Durability

Not Available

1.5 Specific Gravity

3.06-3.252

1 7.18

1.9 Fracture

Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven

Uneven, Uneven, Gemstones (2009), Brittle

1.10 Cleavage

Poor/indistinct on {100}

Prismatic {10 1 0}, perfect

1.11 Mohs Hardness

4.5-52-2.5

2 10

1.13 Chemical Composition

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

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

Childrenite and Cinnabar Chemical Formula

While comparing Childrenite 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 Childrenite and Cinnabar chemical formula.

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

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Childrenite and Cinnabar Specific Gravity

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