2730 “Ellsworthite” Pyrochlore Group (Var: Uranpyrochlore (of Hogarth 1977)), Columbite-(Fe), Bancroft Area, Ontario, Canada
Old specimen of “Ellsworthite” from Bancroft Area, Ontario, Canada, later discredited and found to be Pyrochlore Group (Var: Uranpyrochlore (of Hogarth 1977)) with Columbite-(Fe). 50x30x25 mm.