Mineralogical Magazine; April 2004; v. 68; no. 2;
p. 343-351; DOI: 10.1180/0026461046820191
© Mineralogical Society of Great Britain and Ireland
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FIG. 8. S(2p) XPS spectra from; (a) a freshly cleaved surface of chalcopyrite (cleaved and transferred under nitrogen); (b) chalcopyrite powder prepared by dry grinding in air; and (c) powdered chalcopyrite following reaction with a pH 2.5 solution.
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