Walkthrough
Talk to Doric and he will tell you to collect 6 clay, 4 copper ore and 2 iron ore for use with his anvils. Make sure you have a pickaxe, if not go to Barbarian Village. In Barbarian Village in one of the houses is a bronze pickaxe, pick it up.It is best to head to the Dwarven mines to collect your ore, it is very close. The Dwarven Mines are located North-East of Falador. There is a trapdoor that leads down to the mines, go down it.
If you go South you will see iron and copper rocks. Mine 2 Iron Ore and 4 Copper Ore. If you look a little bit further South, you will see the clay rocks, which you should mine 6 of.
Return back to Doric with all the ore and claim your reward.