8125 Posnjakite, Old Sandbed Mine (Old Sandbeds Mine), Caldbeck Fells, Cumbria, England October 5, 2019 Steve Cumbria England United Kingdom ex Bernie and Margaret Day Collection
Cornwall England United Kingdom 3784 Opal, Posnjakite, Langite, South Wheal Basset, Redruth, Cornwall, England October 3, 2019
Cornwall England United Kingdom ncat JP2520 Posnjakite, South Wheal Basset, Carnkie, Carn Brea, Cornwall, England, UK October 8, 2019
Australasia Australia Tasmania 2461 Posnjakite, Hercules Mine, Williamsford, Tasmania September 22, 2019
