Adamantite ore
From Emps-World Wiki
Adamanite ore requires mining level 70.They grant 716 experience per ore.
An Adamanite ore can be melted into an Adamant bar in a Furnace, using 1 Adamanite ore and 3 Coal ores. You can also use the spell Superheat on a Adamanite ore to get an Adamant bar, but you still need to have atleast 2 Coal ores, 4 fire runes and 1 nature runes in your inventory to use spell. Using this spell will grant 148 Smithing xp and 692 Magic xp Adamant bars are further refined in the Smithing skill. They will grant 430 smithing xp when you smithe a bar into an other item. When you smithe 3 bars for 1 item you will grant 3 x 430 xp.
