Cinnabar and Herderite Physical Properties

Cinnabar

Herderite

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Physical Properties

Tenacity

Slightly sectile

Solubility

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

Durability

Specific Gravity

22.90-3.02

1 7.18

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Fracture

Uneven

Subconchoidal, Conchoidal

Cleavage

Prismatic {10 1 0}, perfect

Indistinct on {110}

Mohs Hardness

2-2.55-5.5

2 10

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Chemical Composition

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

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Cinnabar and Herderite Chemical Formula

While comparing Cinnabar and Herderite 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 Herderite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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Cinnabar and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Herderite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.90-3.02 whereas that of Herderite is 2.90-3.02.