Page 70 - The Periodic Table Book

29
Cu Copper

State: Solid
29 29 35 Discovery: Prehistoric

Transition Metals on limonite often formed. Malachite Pellets of pure copper
Forms
Unique reddish
In caves,
orange colour
feather-like
crystals are

Copper growth

These golden refined in a laboratory
yellow crystals
contain copper sulfide.

Branchlike
crystals
of copper

Chalcopyrite

Colourful tarnish
develops when the
mineral reacts with air.

Bornite

Crustacean blood

Crustacean blood is blue
because it contains copper.

Copper is a soft, bendy metal that is an Copper is the only metal that has a reddish
excellent conductor of electricity and heat. colour in its pure form. Pure copper is mainly
Although it is one of the few elements found used as wires in electrical equipment. Copper
pure in nature, most of it exists in ores such as wire wrapped around an iron core and then
chalcopyrite. Other copper minerals, such as electrified helps create an electromagnet. Because
68 malachite and azurite, are brightly coloured. they can be switched on or off, electromagnets can

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