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Trivia.com

Snail blood is blue due to its containing copper

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Copper ages visibly.

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Copper turns buildings green.

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Spider blood is blue due to its containing copper

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Lobster blood is blue due to its containing copper

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the Statue of Liberty was originally a dull copper color, but after 20 years it oxidized and was covered in green petina.

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Sterling Silver contains a little copper since pure silver is too soft and would bend.

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Copper kills many microbes on contact.

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