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Forty-eight samples of green blue, yellow, orange, and red surficial salts and efflorescences were collected at widely scattered localities in the southern half of the Heritage Range of the Ellsworth Mountains. Green and blue salts include azurite, chalcanthite, malachite, paratacamite, and malachite-paratacamite mixtures. Yellow and orange salts include alunogen, fibroferrite, an aragonite-natrojarosite mixture, natrojarosite-gypsum mixtures (± quartz), and an anglesite-beaverite mixture. All red salts are hematite-quartz mixtures (± muscovite, ± calcite). All salts form by the oxidation of pyrite, chalcopyrite, or galena and then are preserved by the cold, arid Antarctic climate. The assemblage of copper salts is different from...

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