Dark iron bar.  How can i make this??

Oh boy.  Short answer:  You don't want to know.

It is an enormous pain. Though some good things if you're Blacksmithing do come of it. Though it's a huge pain.

This is a great question ,,,I have the same problem my mining is at 287 in skill and I can mine the ore but can't turn the dark iron into bars,,,,Who do you get the quest from for the dark iron to make it into bars.I will do anything it takes for this quest lol,I need dark iron for my blacksmithing.

Don't know if u've figured it out yet.  But in case if u haven't, here's the link:

http://www.wowwiki.com/Smelt_Dark_Iron

can you prospect dark iron?