costume jewelry #4, orange-ish 'nut beads'?

Yes there's more in that box, here's another I know absolutely nothing about. ;-)

This is a string about 28" long (doubled from one hook) of generally 3/8" long yellow-orange-ish beads of some kind. They are all unique in their generally rough exterior texture and irregular shapes/sizes/ridges, though they're also all so very very similar to each other. I havta think they are (or were?) some kind of nut or seed or something, they're absolutely nowhere near heavy enough to be rock, glass, or even plastic. They are strung on a monofilament line.

Clues, anybody?? ;-) :-) :-) :-)