Vivianite from
Czech Republic | |
| Mátl, V.: Ložiska sádrovce opavské pánve. Geologický průzkum, 1981, č. 12, s. 346-350. |
Poland | |
| Kruszewski, Ł., Sierny, W. (2019): Radlin coal fire heap: thiosulfate- and dithionate-bearing alkaline mineralization Cu, Fe, As, and P mineralization and second worldwide occurrence of tsaregorodtsevite. Miner. - Spec. Pap.: 49: 54 |