Purpurite and Azurite Physical Properties

Purpurite

Azurite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.2-3.43.70-3.90

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

[100] [001] perfect

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

1.7 Mohs Hardness

4-4.53.5-4

2 10

1.8 Chemical Composition

MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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

Purpurite and Azurite Chemical Formula

While comparing Purpurite and Azurite 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 Purpurite and Azurite chemical formula.

Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Violet Gemstones

Purpurite Vs Sapphire

Purpurite Vs Sard

Purpurite Vs Sardonyx

Purpurite and Azurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Purpurite and Azurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Azurite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 3.70-3.90 whereas that of Azurite is 3.70-3.90.