I wish you the best of luck! I had some other very nice beads made from stone that I was going to auction off, but my first grader used them to make his teacher a necklace. I couldn't say no =)
I'm gonna have to be honest and tell you I don't really know. I purchased them at a shop in Fayetteville, NC about 15 years ago. The shop was such a neat place, I was hanging onto them because I use to make hemp necklaces.