The image archive, Images of Clay, is an ongoing project of the MinSoc's Clay Minerals Group and The Clay Minerals Society (USA). The idea behind this project is to build a collection of high quality images that are freely available to all to download for non-profit purposes, such as the teaching of clay mineralogy. Suitable images include electron micrographs of clay minerals, or indeed any image associated with the study of clay mineralogy.
The smectite quasicrystal illustrated above appeared in an article by David Laird ((SSSAm. J. 55:1499-1504).
Visit the website Images of Clay for instructions on how to contribute your clay images to the archive.