%0 Journal Article %A Ahmed El Goresy %A Leonid S. Dubrovinsky %A Philippe Gillet %A Smail Mostefaoui %A Günther Graup %A Michael Drakopoulos %A Alexandre S. Simionovici %A Varghese Swamy %A Victor L. Masaitis %T A new natural, super-hard, transparent polymorph of carbon from the Popigai impact crater, Russia %J Comptes Rendus. Géoscience %D 2003 %P 889-898 %V 335 %N 12 %I Elsevier %R 10.1016/j.crte.2003.07.001 %G en %F CRGEOS_2003__335_12_889_0