The historical fact-book is there for all to see:
Uranium (2006, Mt Padbury)) = sp 1.50
Oil (2008, Victorian oilfields) = sp 1.00
Gold (2009 Kurnalpi) = sp 0.50
Iron ore (2010, SHIP) = sp 0.10
QUARTZ (2011) = sp 0.035c
Resignation, Redemption or retirement?