Talk:Cobalt Ore/@comment-89.152.91.235-20120826153623/@comment-5208573-20120826171935

Just drill down like 500 blocks and you should see something. Break a demon altar with a pwnhammer [which you get after you kill the Wall of Flesh] and it will say your world has been blessed with cobalt. Break another, and it says your world has been blessed with mythril, and finally, after breaking 3, you will have all 3 ores. They usually appear VERY deep below ground, and are pretty common in the underworld.