Hemimorphite and Cinnabar Physical Properties

Hemimorphite

Cinnabar

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1 Physical Properties

1.1 Tenacity

Brittle

Slightly sectile

1.2 Solubility

Soluble

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

3.30-3.502

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

Uneven, Uneven, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on {110}, poor on {101}, {001} rare

Prismatic {10 1 0}, perfect

1.7 Mohs Hardness

52-2.5

2 10

1.8 Chemical Composition

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Hemimorphite and Cinnabar Chemical Formula

While comparing Hemimorphite 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 Hemimorphite and Cinnabar chemical formula.

Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hemimorphite and Cinnabar Specific Gravity

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