Try gold first, that\'s the easiest to find. When the pickaxe is equiped and standing for a good spot, type /dig gold, and you\'re mining! Remember you\'ll need some training too, and mining is slow when you\'re low level.
The same goes for iron, coal and platinum; Type /dig iron or /dig coal (or /dig platinum) to mine it.
When you ware succesfull, use A or D to slide to another good spot, becouse you can\'t mine a spot twice in a row. When you\'re standing a small end from the previous spot, try diging again.