Nipissing 407 Mine, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
3.0 x 2.0 x 2.0 cm A specimen of calcite and cobalt-nickel-arsenides shot through with silver, collected by Reiner Mielke summer of 2011.
© Maggie Wilson
Silvery granular (rather indistinct) safflorite in matrix. Old material, purchased from Richard Barstow in 1975.
© Andrew Hodgson
Arsenopyrite calcite/dolomite dissolved off. Arsenopyrite crystals are not rare but generally very small at Cobalt. This plate has above average-sized, arsenopyrite crystals and lots of them! Originally collected by Reiner Mielke when he worked in the area many years ago.
© David K Joyce
Calcite/dolomite dissolved off. Arsenopyrite crystals are not rare but generally very small at Cobalt. This plate has above average-sized, arsenopyrite crystals and lots of them! Originally collected by Reiner Mielke when he worked in the area many years ago.
Arsenolite, etc. Tiny octahedral crystals of arsenolite are present in interstices of this specimen. Whether they are post mining or original crystals I don't know.
A large pile of core samples, near a capped shaft.
Rails on ruins of a foundation.
Ruins of the mill.
A capped shaft.
