21btcc.iss ((COPPER, EPIDOTE)), $65 MINIMUM BID, Osceola Mine, Osceola, Houghton Co., Michigan, USA, 11 x 9 x 8 cm, Cabinet | |
small vugs of lustrous Epidote crystals. Mine not specified but with the Epidote is most likely the Osceola Mine. ex Phil Persson, Colorado School of Mines collection |