My experience has been that mining with iron means that you will run out of iron.
That makes sense =P
But don't you need to use Iron to mine the diamond?
Or stone works too?
--
~Ç~ http://img.imgcake.com/AlecTrevylan006/fdshieldpngyn.png Eff_Dee
http://img.imgcake.com/nio/9fdpngys.png