Hibonite and Cinnabar Physical Properties

Hibonite

Cinnabar

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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

3.842

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven

Cleavage

{0001} good, {10 1 0} parting

Prismatic {10 1 0}, perfect

Mohs Hardness

7.5-82-2.5

2 10

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Chemical Composition

(Ca,Ce)(Al,Ti,Mg)12O19

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

Hibonite and Cinnabar Chemical Formula

While comparing Hibonite 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 Hibonite and Cinnabar chemical formula.

Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hibonite and Cinnabar Specific Gravity

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