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Pyromorphite
Pyromorphite

Aragonite
Aragonite



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Pyromorphite
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Aragonite

Pyromorphite and Aragonite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Dilute acid
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
6.5-7.12.93-2.96
Amber
1 7.18
1.5 Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
Imperfect- [10 1 1]
Distinct on {010}, imperfect {110} and {011}
1.7 Mohs Hardness
3.5-43.5-4
Amber
2 10
1.8 Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
CaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyromorphite and Aragonite Chemical Formula

While comparing Pyromorphite and Aragonite 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 Aragonite chemical formula.

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

Pyromorphite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.