Trivia.com
Sterling Silver contains a little copper since pure silver is too soft and would bend.
Trivia.com
Copper kills many microbes on contact.
Trivia.com
Lobster blood is blue due to its containing copper
Trivia.com
Copper turns buildings green.
Trivia.com
Snail blood is blue due to its containing copper
Trivia.com
the Statue of Liberty was originally a dull copper color, but after 20 years it oxidized and was covered in green petina.
Trivia.com
Copper ages visibly.
Trivia.com
Spider blood is blue due to its containing copper
See also
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