Between a Rock...
1. Must have completed: Fishing Contest and Dwarf Cannon(If possible, do the Giant Dwarf Quest first; being able to use the Mine carts for transport makes this quest go much faster.)
2. Level 30 Defence , Level 40 Mining (higher mining being an advantage), Level 50 Smithing
3. Being able to defeat a level 75 to 125 (Depends on your level) enemy
coins (about 5k would be enough), 4 Gold bars, 1 cannonball mould, and a hammer a Pickaxe
2 Quest Points
5000 defence xp, 5000 Mining xp, 5000 Smithing xp, and a rune pickaxe
A golden helmet, the ability to mine gold inside