Cinnabar and Bertrandite Physical Properties

Cinnabar

Bertrandite

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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

22.59-2.60

1 7.18

1.5 Fracture

Uneven, Uneven, Gemstones (2009), Brittle

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Prismatic {10 1 0}, perfect

{001} Perfect, {110} Distinct, {101} Distinct

1.7 Mohs Hardness

2-2.56-7

2 10

1.8 Chemical Composition

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

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Cinnabar and Bertrandite Chemical Formula

While comparing Cinnabar and Bertrandite 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 Bertrandite chemical formula.

Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Cinnabar and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.