5700 11atbwiss ((COVELLITE)), $75 MINIMUM BID, Leonard Mine, Butte, Silver Bow County, Montana, 10.5 x 4.5 x 2 cm, Cabinet | |
Here is a large covellite from Montana with minor Pyrite. Weight is 7.7 ounzes. I has a lustrous magenta patina. One edge exposes the inside and the fresher edge has a lustrous blue patina. ex Bill Williams collection. |