Potassium carbonate is one of the chemicals left behind ... We obtained aluminum powder by filing down old soda cans. We chose to use iron(III) oxide, or Fe 2 O 3, known more commonly as rust.

Growth if iron(III)–reducing bacteria on clay minerals as the sole electron ... Rates of anaerobic oxidation of methane and authigenic carbonate mineralization in methane-rich deep-sea sediments ...