Cinnabar and Hollandite Physical Properties

Cinnabar

Hollandite

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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

25.05

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Brittle, Metallic

1.6 Cleavage

Prismatic {10 1 0}, perfect

Distinct / Good, Prismatic

1.7 Mohs Hardness

2-2.54-6

2 10

1.8 Chemical Composition

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

Ba(Mn++++,Mn++)8O16

Cinnabar and Hollandite Chemical Formula

While comparing Cinnabar and Hollandite 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 Hollandite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

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Cinnabar and Hollandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 5.05 whereas that of Hollandite is 5.05.