Iron Ochre And Related Sludge Deposits In Subsurface Drain ...
In subsurface drains, there are four known types of sludge deposits that are associated with bacterial activity. These are ochre, manganese deposits, sulfur slime, and iron sulfide. Iron deposits, collectively named ochre, are the most serious and widespread. Ochre deposits and associated slimes are usually red, yellow, or tan in color.
types iron ore mixed with sulfur
types iron ore mixed with sulfur Iron ore - Wikipedia, the free encyclopedia Iron ores are rocks and minerals from which metallic iron can be economically extracted.