16 July 2015

Faulted sulfide vein, Golden Sunlight Mine, Montana

Posted by Callan Bentley

Here’s a really cool hand sample my student Xiuming found when were were exploring the waste rock piles at the Golden Sunlight Mine near Whitehall, Montana, the week before last:


That’s a vein of pyrite and chalcopyrite, offset along a series of three small fault zones:


Pocket faults! Three for the price of one.