Enargite on Pyrite, 3200 Level, Stewart Mine, Butte District, Silver Bow County, Montana 2 x 2.5 x 3.5 cm $25. online August 1 SOLD
NSMW12309
Mounded group of octahedral pyrite with druse of enargite. Exemplary locality information rare from this mine and time period. Eric Petersen Collection. Mined 1970. Tiny chips on a couple of pyrites.