Kyanite and Cinnabar Physical Properties

Kyanite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Brittle

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

3.53-3.652

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

[100] perfect [010] imperfect with 79° angle between

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

4-72-2.5

2 10

1.8 Chemical Composition

Not Available

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

Kyanite and Cinnabar Chemical Formula

While comparing Kyanite 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 Kyanite and Cinnabar chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Kyanite and Cinnabar Specific Gravity

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