Pennies can turn Gold or Silver through a chemical experiment. These are real pictures. The slight copper you see on the silver penny is caused by the runoff of the coating. These three were all shiny pennies before the start of the experiment.

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Starnix is a community effort lead by FOSS enthusiasts for the purpose of establishing ActivityPub Software and promoting Fediverse usage. The primary topics for this Mastodon instance include but are not limited to software technology, including FOSS, Unix and Unix-like operating systems, and gaming.