Coral and Cinnabar Physical Properties

Coral

Cinnabar

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1 Physical Properties

1.1 Tenacity

Not Available

Slightly sectile

1.2 Solubility

Not Available

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

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.702

1 7.18

2.4 Fracture

Irregular, Irregular, Gemstones of the world (2001)

Uneven, Uneven, Gemstones (2009), Brittle

2.5 Cleavage

Not Available

Prismatic {10 1 0}, perfect

2.6 Mohs Hardness

3-42-2.5

2 10

2.7 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

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

Coral and Cinnabar Chemical Formula

While comparing Coral 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 Coral and Cinnabar chemical formula.

Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Coral and Cinnabar Specific Gravity

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