Iridescent Bacterial Film 3

Rainbow-coloured bacterial film on the surface of iron-rich water

Iridescent Bacterial Film 3 – Natural abstract pattern in rainbow colours on the surface of water produced by iron-oxidising bacteria in a small beach stream issuing from iron-rich volcanic rocks at Yachats in Oregon, USA. Iron-rich volcanic rock, and green algae with bubbles of oxygen, border the iridescent film.

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