Publication details
The crystal structure of natural zippeite, K1.85H+0.15[(UO2)4O2(SO4)2(OH)2](H2O)4, from Jáchymov, Czech Republic.
| Authors | |
|---|---|
| Year of publication | 2011 |
| Type | Article in Periodical |
| Magazine / Source | Canadian Mineralogist |
| MU Faculty or unit | |
| Citation | |
| Doi | http://dx.doi.org/10.3749/canmin.49.4.1089 |
| Field | Solid matter physics and magnetism |
| Keywords | uranyl minerals ; X-ray diffraction ; crystal structure ; Jana2006 ; bond-valence approach |
| Description | The crystal structure of natural zippeite,K1.85H+0.15[(UO2)4O2(SO4)2(OH)2](H2O)4, from Jáchymov, Czech Republic, has been determined by single-crystal X-ray diffraction. Zippeite is monoclinic, space group C2/m, with a 8.7802(6), b 13.9903(12), c 8.8630(6) A, beta 104.524(7), V 1053.92(12) A3. The structure consists of structural sheets of the zippeite uranyl anion topology and an interlayer, in which split K atoms and disordered O atoms (of the H2O groups) are located. The structure unit [(UO2)4O2(SO4)2(OH)2]2– is novel for both natural and synthetic compounds, but generally consistent with the known zippeite-type structures. |
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