these veins are amazing for gold :D
while farming cobras in Nagrand, 2 of these veins popped up pretty quickly and from mining them i got:
7 khorium ores (35g on my realm)
15 motes of fire (40g)
5 motes of earth (3g)
so about 78g from 2 veins :)

-_- Coconutfury
  Cenarius realm