Silver crystals on Copper crystals
Osceola Mine, Osceola, Houghton County
4.9 x 2.7 x 1.6 CM (miniature)
pre Tucson 2015 update
An odd yet quite attractive specimen which is very well crystallized. The matrix is mostly all copper, some of it is crystallized with flattened octahedra and some standing fingers of crystals. The main event is the Silver that is crystallized in twisting fingers and branches contrasting to the copper. A little Malachite and a blue mineral (Chalcanthite?) are visible too. The blue could be cleaned off but it adds interest as is in my opinion. The condition is perfect, the esthetics are distinctive and not typical.