Bacteria And Gold

[Digger Bob]

Well, now.  How about that?

http://www.geologyin.com/2016/03/researchers-discover-bacteria-that.html

[gambler]

hmmmm, bet it costs more to make it than its worth.

[AU_Solitude]

This article has been making the rounds for a few years now - gold chloride in solution is almost as expensive as gold, cool concept, however, when considering material handling and overhead it lacks the feasibility of a profitable operation.