Bugged ore spawns, 4 nodes spawn as a group

I've been farming Uldum for the last 2 hours in 1 spot because I found that in 2 locations 4 nodes of ore spawn simultaneously. I dont have fraps, otherwise I'd take a video of it and post it on here while i camp the lodations.

• 27, 37 area
• 37, 9

Both of these spawns will either spawn 1 node of rich, or 4 regular node simultaneously. I like the 4 nodes because you're getting 2-4 a node, for 8-16 ore.

The spawn rate for the 4 nodes seems to be around 5 minutes, but I'm guessing it's dependant on other people farming different areas.