Khorium farming

[Phoebus]

Hi everybody!
I'm trying to farm some khorium on Lordaeron.
I know they should spawn off the Adamantite veins so I went to Nagrand and I did 1 full circle mining all the adamantite veins. Then I did 2 more circles but I found only Adamantite (even some weird spawn where there were two Adamantite veins one on top of the other).
I got 324 adamantite ore, 17 elementium ore and not a single khorium.

Am I doing something wrong?
Is there some better area to farm Khorium?

[NemanjaNik]

Same thing with Khorium here, on ICC, I crossed the whole spot on Outland and didn'y find a thing. It will not be possible to make a Jeeves soon, because the prices will jump by a few more pieces at the auction.

[Therio]

It's just insanely rare, the spots I've gotten most lucky in are Netherstorm and the one area above the Aldor Rise where the Ogres chill.