Unique archaea bacteria were found by Brett Baker's lab at the University of California Berkely at a mine which has been geologically classified as what?
Archaeal Richmond Mine acidophilic nanoorganisms: Archaeal Richmond Mine acidophilic nanoorganisms (ARMAN) were first discovered in an extremely acidic mine located in northern California (Richmond Mine at Iron Mountain) by Brett Baker in Jill Banfield's laboratory at the University of California Berkeley. Iron Mountain Mine:  Geologically classified as a "massive sulfide ore deposit", the site was mined for iron, silver, gold, copper, zinc and pyrite intermittently from the 1860s until 1963.
"massive sulfide ore deposit"