Main potash producers, such as PotashCorp., Mosaic and Agrium took a major hit after Russian competitor's decision that will likely undercut prices for the fertilizer.
Clashes between illegal miners and an unexplained incident near Lonmin's Marikana mine fuel concerns of a new wave of violence across the mining industry.
The cofounder and chairman of Roubini Global Economics, also known as Dr. Doom, said this week’s US Federal Open Market Committee meeting drive gold prices lower.
