Copper (Spinel-Twinned)
Thumbnail, 2.9 x 1.2 x 0.8 cm
Champion Mine, Painesdale, Houghton Co., Michigan, USA
Ex. Robert Nowakowski

An exquisite, curving, doubly terminated, spinel twin of copper that is symmetrically shaped like a fish skeleton. A superb thumbnail for the mine, showing the classic style! ELEGANT! In fact, one seldom sees such finely formed specimens in a thumbnail size from this mine. The crystals have a patina colored a rich brownish-red (untouched by acidizing)