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Pyromorphite
Pyromorphite

Cinnabar
Cinnabar



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Pyromorphite
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Cinnabar

Pyromorphite and Cinnabar Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Slightly sectile
1.2 Solubility
Not Available
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
6.5-7.12
Amber
1 7.18
1.5 Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Uneven, Uneven, Gemstones (2009), Brittle
1.6 Cleavage
Imperfect- [10 1 1]
Prismatic {10 1 0}, perfect
1.7 Mohs Hardness
3.5-42-2.5
Amber
2 10
1.8 Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyromorphite and Cinnabar Chemical Formula

While comparing Pyromorphite 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 Pyromorphite and Cinnabar chemical formula.

  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  • Chemical formula of Cinnabar- HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyromorphite and Cinnabar Specific Gravity

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