Cinnabar and Poldervaartite Physical Properties

Cinnabar

Poldervaartite

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1 Physical Properties

1.1 Tenacity

Slightly sectile

Not Available

1.2 Solubility

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

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

22.91

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Handbook of mineralogy (2001)

1.6 Cleavage

Prismatic {10 1 0}, perfect

None

1.7 Mohs Hardness

2-2.5Not Available

2 10

1.8 Chemical Composition

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

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Cinnabar and Poldervaartite Chemical Formula

While comparing Cinnabar and Poldervaartite 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 Poldervaartite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

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Cinnabar and Poldervaartite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.91 whereas that of Poldervaartite is 2.91.