Posnjakite from Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
Canada | |
| Sabina, Ann P. (2000) Rocks and minerals for the collector, Cobalt-Belleterre-Timmins, Ontario and Quebec. Miscellaneous report 57. Geological Survey of Canada |
| Reiner Mielke 2016 |