%0 Journal Article
%A Sánchez del Río, Manuel
%A Súarez Barrios, Mercedes
%A García Romero, Emilia
%A Alianelli, Lucia
%A Felici, Roberto
%A Martinetto, Pauline
%A Dooryhée, Eric
%A Reyes Valerio, Constantino
%A Borgatti, Francesco
%A Doyle, Bryan
%A Giglia, Angelo
%A Mahne, Nicola
%A Pedio, Maddalena
%A Nannarone, Stefano
%T Mg K-edge XANES of sepiolite and palygorskite
%D 2005
%@ 0168-583X
%U https://hdl.handle.net/20.500.14352/49739
%X We present a study of the Mg K-edge on sepiolite and palygorskite performed at the INFM BEAR beamline at Elettrasynchrotron light source (Trieste). These two clays, although having very similar structures, show some differentfeatures in their near-edge. Mg is in octahedral coordination with oxygens, hydroxyl groups or water, for both palygorskiteand sepiolite. The differences found in the near-edge seem to reflect the fact that, on average, an Mg atomin palygorskite ‘‘sees’’ less Mg in higher coordination shells than sepiolite.
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