Solitario Exploration & Royalty Co (USA) (NYSEMKT:XPL) Shareholder Notice: Investigation Announced

San Diego, CA -- (ReleaseWire) -- 06/23/2015 -- An investigation on behalf of current long-term investors in shares of Solitario Exploration & Royalty Co (USA) (NYSEMKT:XPL) shares was announced over potential breaches of fiduciary duties by certain officers and directors at Solitario Exploration & Royalty Co .