Siderophile and chalcophile elements in spinels, sulphides and native Ni in strongly metasomatised xenoliths from the Bultfontein kimberlite (South Africa)

Sonja Aulbach, Andrea Giuliani, Marco L. Fiorentini, Raphael J. Baumgartner, Dany Savard, Vadim S. Kamenetsky, Stefano Caruso, Leonid V. Danyushevky, Will Powell, William L. Griffin