Cordierite and Cinnabar Physical Properties

Cordierite

Cinnabar

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.57-2.66

Subconchoidal, Conchoidal

Fair on {100}, poor on {001} and {010}

7-7.5

Mg2Al4Si5O18

Slightly sectile

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

Uneven

Prismatic {10 1 0}, perfect

2-2.5

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

Cordierite and Cinnabar Chemical Formula

While comparing Cordierite 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 Cordierite and Cinnabar chemical formula.

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Cordierite and Cinnabar Specific Gravity

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