My bad on the sourcing...
It was Bionitrous who posted in the old story forums about the abundance of notum. However... there is official Funcom info to back it up. In the Shadowlands section of the main page.
http://www.anarchy-online.com/conten...owlands/story/
Third paragraph down:Italics addedRubi-Ka proved different from other planets; blessed with enormous quantities of notum, the mysterious fuel for advanced nanotechnology, and the building blocks of scientific progress.
Touche, and stuff.