The RÃo Tinto (red river) is a river in southwestern Spain. As a possible result of the mining, RÃo Tinto is notable for being very acidic (pH 2) and its deep reddish hue is due to iron dissolved in the water. This river has gained recent scientific interest due to the presence of extremophile aerobic bacteria that dwell in the water.
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acid acidity andalucia andalusia background biology chalcopyrite color colorful colors contamination contrast copper exobiology forest geology huelva hydrothermal industry iron lake landscape mars mediterranean metal mine mineral minery mining national natural nature orange park pollution pyrite rain red reservoir rio riotinto river rock rocks spain spanish stone sulfide sulfur sulfuric sulphuric tinto toxic waste water wine yellow
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