Cinnabar and Shigaite Physical Properties

Cinnabar

Shigaite

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1 Physical Properties

1.1 Tenacity

Slightly sectile

Moderately ﬂexible

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

22.32

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Flexible Flexible fragments.

1.6 Cleavage

Prismatic {10 1 0}, perfect

Perfect on {0001}

1.7 Mohs Hardness

2-2.52

2 10

1.8 Chemical Composition

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

Not Available

Cinnabar and Shigaite Chemical Formula

While comparing Cinnabar and Shigaite 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 Shigaite chemical formula.

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

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Cinnabar and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.32 whereas that of Shigaite is 2.32.