In my opinion for diversication investing in Cape Lambert (CFE) who own Australis Exploration Limited that have tenements that are prospective for rock phosphate is a good play.
http://www.capelam.com.au/irm/content/projects_australis.html
Rum Jungle Resources (RUM) also look good in my opinion.
Consult a licenced professional before making investment decisions as my tips a general in nature and my views only.
