Azurite and Emerald Physical Properties

Azurite

Emerald

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

3.70-3.90

2.67-2.78

1.5 Fracture

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

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Imperfect on the [0001]

1.7 Mohs Hardness

3.5-4

7.5-8

1.8 Chemical Composition

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

Be₃Al₂SiO₆

Azurite and Emerald Chemical Formula

While comparing Azurite and Emerald 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 Emerald 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 Emerald- Be₃Al₂SiO₆

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Azurite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Azurite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.