Cinnabar and Labradorite Physical Properties

Cinnabar

Labradorite

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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

22.69-2.72

1 7.18

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Fracture

Uneven

Uneven, Conchoidal

Cleavage

Prismatic {10 1 0}, perfect

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

Mohs Hardness

2-2.56-6.5

2 10

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Chemical Composition

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

(Na,Ca)_1-2Si_3-2O₈

Cinnabar and Labradorite Chemical Formula

While comparing Cinnabar and Labradorite 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 Labradorite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Cinnabar and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.