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Sánchez del Río, Manuel ; Boccaleri, Enrico ; Milanesio, Marco ; Croce, Gianluca ; Beek, Wouter van ; Tsiantos, Constantinos ; Chyssikos, Georgios D. ; Gionis, Vassilis ; Kacandes, Georges H. ; Súarez Barrios, Mercedes ; García Romero, Emilia | Springer Netherlands | 2009The heating process (30–200 ºC) of a palygorskite- indigo mixture has been monitored in situ and simultaneously by synchrotron powder diffraction and Raman spectroscopy. During this process, the dye and the clay interact to form Maya blue (MB), [...]texto impreso
Chryssikos, Georgios D. ; Gionis, Vassilis ; Kacandes, Georges H. ; Stathopoulou, Elizabeth T. ; Súarez Barrios, Mercedes ; García Romero, Emilia ; Sánchez del Río, Manuel | Mineralogical Society of America | 2009The OH speciation of 18 palygorskite samples from various localities were evaluated by near infrared spectroscopy (NIR) and compared to the corresponding octahedral composition derived from independent, single-particle analytical electron micros[...]texto impreso
Stathopoulou, Elizabeth T. ; Súarez Barrios, Mercedes ; García Romero, Emilia ; Sánchez del Río, Manuel ; Kacandes, Georges H. ; Gionis, Vassilis ; Chryssikos, Georgios D. | Mineralogical Society of America. | 2011The mixed dioctahedral-trioctahedral character of Mg-rich palygorskite has been previously described by the formula yMg5 Si8 O20(OH)2(OH2)4(1–y)[xMg2Fe2(1–x)Mg2 Al2] Si8 O20(OH)2(OH2)4, where y is the trioctahedral fraction of this two-chain rib[...]
