Sirius stock collapses after unveiling plan for UK’s largest potash mine

[caption id="attachment_828841" align="aligncenter" width="600"] The proposed mine will be within the boundaries of the North York Moors National Park.[/caption] Shares in potash miner Sirius Minerals (LON:SXX) crashed Friday, plunging by double digits, as the company unveiled detailed plans to begin constructing...