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      Digital & 4-Year Archive

      Scientific American September 1998

      River of Vitriol

      The Rio Tinto in Spain abounds in acid--and unexpected organisms

      • By Luis Miguel Ariza on September 1, 1998

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      More in the September 1998 issue of Scientific American
      • Making New Elements
      • The Flip Side of the Universe
      • Thermophotovoltaics
      View Full Contents
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