Sugilite and Cinnabar Physical Properties

Sugilite

Cinnabar

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Physical Properties

Tenacity

Slightly sectile

Solubility

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

Durability

Specific Gravity

2.69-2.792

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

Poor on {0001}

Prismatic {10 1 0}, perfect

Mohs Hardness

5.5-6.52-2.5

2 10

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Chemical Composition

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Sugilite and Cinnabar Chemical Formula

While comparing Sugilite 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 Sugilite and Cinnabar chemical formula.

Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sugilite and Cinnabar Specific Gravity

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