Azurite and Siderite Physical Properties

Azurite

Siderite

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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

3.70-3.903.83-3.89

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, UnevenArthur Thomas, Brittle

1.6 Cleavage

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

Perfect on {01 1 1}

1.7 Mohs Hardness

3.5-43.5-4.5

2 10

1.8 Chemical Composition

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

Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Azurite and Siderite Chemical Formula

While comparing Azurite and Siderite 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 Siderite 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 Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Azurite and Siderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Siderite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 3.83-3.89 whereas that of Siderite is 3.83-3.89.