Requirements: Any pickaxefood, and if you want the best armor, the ability to kill a lvl 131. Recommended: 50 Magic. In the dungeon, you will find 3 tunnels. Each contributes to a vein of a different kind of mineral. One leads to Aluminum, another to OSRS gold, the final you to Diamond.
In each tunnel, you will find monsters that will appear randomly. The more monsters you kill, the more stones will be at the end of the tunnel. Additionally, at the end of every tunel there's a protector that you must conquer. There are no safespots from the tunnels, and magic functions best on them. Warriors will have a hard time from the tunnels.
When you defeat the guardian, it is going to drop a key, which may be used to unlock the doorway ahead. This is where the ore is. Based on the number of creatures you killed, there will be many more rocks. The rocks can be mined after before they vanish.
Another alternative comes in if you have 50 Magic. There's a spell called"Rock Enhance", requiring 4 Fire runes, 1 Air rune, and two Cosmic runes. It can only be cast after the rock has been mined. This spell will turn the rock into a"Binding Stone". Pick this up and use it with the ore to get a"Powerful Ore". If you make a Complete armor set with Buy 2107 runescape gold this, the armor will continue more (see below)