1. Vaughan, D.J. and Craig, J.R., Mineral Chemistry of Metal Sulfides, Cambridge: Cambridge Univ. Press, 1978.
2. Pring, A., Tenailleau, C., Etschmann, B., et al., Regolith 2005, Ten Years of CRC LEME, Roach, I.C.. Ed, Adelaide, 2005, pp. 252–255.
3. Chanturiya, V., Makarov, V., and Forsling, W., Int. J. Miner. Proc., 2004, vol. 74, nos. 1–4, pp. 289–301.
4. Reznik, I.D., Sobol’, S.I., and Khudyakov, V.M., Kobal’t (Cobalt), Moscow: Mashinostroenie, 1995, vol. 2.
5. Peterson, U.T. and Ingri, J., Chem. Geol., 2001, vol. 177, pp. 399–414.