MOH and I will shortly be off on a field trip to a few nearby localities, including Majuba Hill, reportedly a great mineral and rock collecting site, seen here from I-80 looking northwest across Rye Patch Reservoir.
I might try posting from the field with pictures from my phone, but phone photos post at a size slightly too large for my blog styling, and they definitely are not as good as pictures I'll be taking with my camera. So we'll see if I try this somewhat time consuming activity.
Majuba Hill, besides having a wide range of economic elements including copper, tin, and uranium (I also hear there may be gold and silver), has been exposed to several intrusive events, and several varieties of breccia have been recognized. Read more here.
Trites, A.F., Jr., and Thurston, R.H. (1958), Geology of Majuba Hill, Pershing County, Nevada, USGS Bulletin 1046-I: 183-203.