Gahnite and Cinnabar Physical Properties

Gahnite

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

4.00-4.622

1 7.18

1.5 Fracture

Conchoidal, Uneven

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

Indistinct parting on [111]

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

7.5-82-2.5

2 10

1.8 Chemical Composition

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Gahnite and Cinnabar Chemical Formula

While comparing Gahnite 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 Gahnite and Cinnabar chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Gahnite Vs Indicolite Blue Tourmaline

Gahnite Vs Hydrogrossular

Gahnite Vs Howlite

Gahnite and Cinnabar Specific Gravity

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