1. Elgersma, F. Integrated hydrometallurgical jarosite treatment. Ph.D. thesis, Delft University, The Netherlands, 1992, pp. 1–13.
2. Dutrizac, J. E. The hydrothermal conversion of jarosite-type compounds to hematite, In Productivity and Technology in the Metallurgical Industries, ed. M. Koch and J. C. Taylor, Metals and Materials Society, The Minerals, 1989, pp. 587–612.
3. Dutrizac, J. E. Converting jarosite residues into compact hema-tite particles. JOM, 1, January 1990, pp. 37–39.
4. Preparing particulate magnetites with pigment properties from suspensions of basic iron(III) sulphates with the structure of jarosite