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\bibitem{Worobiec_etal2007} {\textquotedblleft}\textit{Characterisation of concentrates of heavy mineral sands by micro-Raman spectrometry and CC-SEM/EDX with HCA}{\textquotedblright}. Worobiec A, Stefaniak EA, Potgieter-Vermaak S, Sawlowicz Z, Spolnik Z, Van Grieken R, Applied geochemistry \textbf{22}, 2078 (2007).   http://doi.org/10.1016/J.APGEOCHEM.2007.05.003

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