Phlogopite and Cinnabar Physical Properties

Phlogopite

Cinnabar

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Physical Properties

Tenacity

Tough

Slightly sectile

Solubility

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

Durability

Specific Gravity

2.78-2.852

1 7.18

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Fracture

Uneven

Cleavage

Perfect basal (001)

Prismatic {10 1 0}, perfect

Mohs Hardness

2-2.52-2.5

2 10

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Chemical Composition

KMg3(Si3Al)O10(F,OH)2

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

Phlogopite and Cinnabar Chemical Formula

While comparing Phlogopite 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 Phlogopite and Cinnabar chemical formula.

Chemical formula of Phlogopite- KMg3(Si3Al)O10(F,OH)2
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Phlogopite and Cinnabar Specific Gravity

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