Geochemistry and origin of the emerald deposits of Colombia Current research in geology applied to ore deposits /Giuliani, Gaston Cheilletz, A. Sheppard, S.M.F. Arboleda, C. GEOCHIMIE GITOLOGIE MINERALISATION ALTERATION HYDROTHERMALE EMERAUDE s.n. Fenoll Hach-Ali (ed.) Torres-Ruiz (ed.) Gervilla (ed.) 1993 text https://www.documentation.ird.fr/hor/fdi:40563 fdi:40563 Giuliani Gaston, Cheilletz A., Sheppard S.M.F., Arboleda C.. Geochemistry and origin of the emerald deposits of Colombia. In : Fenoll Hach-Ali (ed.), Torres-Ruiz (ed.), Gervilla (ed.), . Current research in geology applied to ore deposits s.n., 1993, 105-108 Biennial SGA Meeting, 2., Grenade (ESP), 1993/09/09-11 EN COLOMBIE