Special bead source

Hi all, I was approached by another business owner today who was
looking for a source for Brazilian Agate Donuts in 6mm, 8mm, 10mm,
and 12mm. These can be both natural or dyed. I guess he would be
interested in buying a couple of hanks of each size, or perhaps even
a box of mixed. If anyone knows of a good source, I would love to
hear about it. Also, I did give this individual the address for
Orchid, so perhaps he will even make is own post shortly.