The Challenge: Extract silver particles encased in silica that have resisted traditional processing methods.
The Reward: Ten Million Dollars
While the contest is geared towards scientists in the realm of mining, anyone with a half way workable idea might not be discounted by Barric.
Considering all of the brilliant thinkers on this forum I wouldn't be suprised if someone here would come up with a way to get the silver out of the ground and claim the prize (Just get your idea written down and notarized first before submitting it.)