Azurite and Pyromorphite Physical Properties

Azurite

Pyromorphite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.70-3.906.5-7.1

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

Perfect on {011}, fair on {100}, poor on {110}

Imperfect- [10 1 1]

1.7 Mohs Hardness

3.5-43.5-4

2 10

1.8 Chemical Composition

Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Azurite and Pyromorphite Chemical Formula

While comparing Azurite and Pyromorphite 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 Azurite and Pyromorphite chemical formula.

Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

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Azurite and Pyromorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.