IMAGES OF CLAY
| Alunite | |
| From Turplu Mine, Balikesir, Turkey |  Rhombohedral structure of alunites displaying casts of step growth features |
| Field of view approx. 52.0 microns wide | |
| Photo courtesy Ömer Işik Ece, Istanbul Technical University | |
| 986 x 722 pixel file (720 KB) - opens in a new window |
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| http://dx.doi.org/10.1346/CCMN.2007.0550102 | |
