In sheltered areas, the main corrosion product is antlerite.
2.
Associated minerals include antlerite, molybdenite, powellite, brochantite, chrysocolla, iron oxides and quartz.
3.
Copper ( II ) hydroxide occurs naturally as a component of several copper minerals, notably azurite, malachite, antlerite, and brochantite.
4.
Antlerite is a common corrosion product on bronze sculptures located in urban areas, where atmospheric sulfur dioxide ( a common pollutant ) is present.
5.
Antlerite forms mainly in sheltered areas where weathering is low, which permits accumulation of copper ions and enhancement in the acidity of water films.
6.
Azurite ( 2CuCO 3 �Cu ( OH ) 2 ) and malachite ( CuCO 3 �Cu ( OH ) 2 ) are carbonates while antlerite ( CuSO 4 ?Cu ( OH ) 2 ) and brochantite ( CuSO 4 ?Cu ( OH ) 2 ) are sulfates.
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