Cinnabar and Periclase Physical Properties

Cinnabar

Periclase

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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)

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

23.7-3.9

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Conchoidal, Brittle

1.6 Cleavage

Prismatic {10 1 0}, perfect

{001} perfect; {111} imperfect, may exhibit parting on , {011}

1.7 Mohs Hardness

2-2.55.5-6

2 10

1.8 Chemical Composition

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

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Cinnabar and Periclase Chemical Formula

While comparing Cinnabar and Periclase 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 Periclase chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

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Cinnabar and Periclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Periclase Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.7-3.9 whereas that of Periclase is 3.7-3.9.