Cinnabar and Magnesite Physical Properties

Cinnabar

Magnesite

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1 Physical Properties

1.1 Tenacity

Slightly sectile

Brittle

1.2 Solubility

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

Effervesces in hot HCl

1.3 Durability

Not Available

1.4 Specific Gravity

22.92-3.12

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Prismatic {10 1 0}, perfect

[10 1 1] perfect

1.7 Mohs Hardness

2-2.53.5-4.5

2 10

1.8 Chemical Composition

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

MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cinnabar and Magnesite Chemical Formula

While comparing Cinnabar and Magnesite 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 Magnesite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cinnabar and Magnesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Magnesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Magnesite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.92-3.12 whereas that of Magnesite is 2.92-3.12.