Mosaic Co. granular muriate of potash is arranged for a photograph in Tiskilwa, Illinois, U.S., on Saturday, March 26, 2011. Photographer: Daniel Acker
A piece of potash ore from the Mosaic Co. potash mine in Colonsay, Saskatchewan, Canada is arranged for a photograph in Tiskilwa, Illinois, U.S., on Saturday, March 26, 2011. Photographer: Daniel Acker
