Vishnevite from
Germany | |
| Blass, G., (2010): Die neuen Mineralienfunde aus der Vulkaneifel, Mineralienwelt, Vol. 05, 2010 |
| Riley, T., Bailey, K., lloyd, F.,, Extrusive carbonatite from the quaternary Rockeskyll complex, West Eifel, Germany, Canadian Mineralogist, Vol 34, 389-401, 1996 |