The geopolymer group at University of Illinois, Prof. W. Kriven, participated to the Center for Microanalysis of Materials (CMM) image contest with an image titled: 10. Vitrification of 3SiO2:Al2O3:K2O:10H2O geopolymer gel by heating to 1600°C. Crystallization of the glass systems was dendritic as seen by in micrograph of the top surface. Jonathan Bell, Kriven group. October 2005
click on CMN contest