From fool's gold to white gold

Findings reveal high concentrations of lithium in pyrite.

The golden glitter of a faceted nugget of pyrite has earned it the moniker "fool's gold" for its abundance, showy false promise and low value as a common sulfide – until recently. Lithium, on the other hand, has been the modern day's elusive "white gold" prize in many searches, from hard rock mines to brines and more experimental sources su...