“This specimen was one of those that you pick up because it is interesting, but never really realised how interesting it was until you clean it up. I knew this specimen had a fair amount of copper on it with a little silver poking through some calcite. After a few baths in vinegar, most of the calcite was removed and several large blebs of silver appeared. The specimen measures approx. 8 cm across with the largest of the silver approx. 7 mm across. It was collected in August, 2009 from the Minesota Mine in Ontonagon Co., MI. A few other coppers and copper/silver halfbreeds were collected as well; all in all a good day at the Minesota Mine.”

“This specimen was one of those that you pick up because it is interesting, but never really realised how interesting it was until you clean it up. I knew this specimen had a fair amount of copper on it with a little silver poking through some calcite. After a few baths in vinegar, most of the calcite was removed and several large blebs of silver appeared. The specimen measures approx. 8 cm across with the largest of the silver approx. 7 mm across. It was collected in August, 2009 from the Minesota Mine in Ontonagon Co., MI. A few other coppers and copper/silver halfbreeds were collected as well; all in all a good day at the Minesota Mine.”

“This specimen was one of those that you pick up because it is interesting, but never really realised how interesting it was until you clean it up. I knew this specimen had a fair amount of copper on it with a little silver poking through some calcite. After a few baths in vinegar, most of the calcite was removed and several large blebs of silver appeared. The specimen measures approx. 8 cm across with the largest of the silver approx. 7 mm across. It was collected in August, 2009 from the Minesota Mine in Ontonagon Co., MI. A few other coppers and copper/silver halfbreeds were collected as well; all in all a good day at the Minesota Mine.”