Turquoise and Cinnabar Physical Properties

Turquoise

Cinnabar

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Physical Properties

Tenacity

Slightly sectile

Solubility

Soluble

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

Durability

Specific Gravity

2.30-2.902

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

Good to perfect_usually N/A

Prismatic {10 1 0}, perfect

Mohs Hardness

5-62-2.5

2 10

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Chemical Composition

CuAl₆(PO₄)₄(OH)₈ • 4H₂O

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

Turquoise and Cinnabar Chemical Formula

While comparing Turquoise 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 Turquoise and Cinnabar chemical formula.

Chemical formula of Turquoise- CuAl₆(PO₄)₄(OH)₈ • 4H₂O
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Turquoise and Cinnabar Specific Gravity

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