'Orange Gunge' - Iron Bacteria and Bog Iron

Iron is very common near old mine workings etc and this 'Orange Gunge' is a common sight near water. One type of 'Iron Bacteria' converts ferric to soluble ferrous in conditions free of oxygen and then another converts the ferrous into insoluble ferric that deposits out as the gunge. The bacteria 'feed' on the these chemical reactions.

In boggy conditions significant amounts of 'Bog Iron' have formed from the 'gunge' over thousands of years and this was once used to make iron in Russia, USA, etc.

Видео 'Orange Gunge' - Iron Bacteria and Bog Iron канала Roger Griffith