Be careful, please, when you see this kind of bead. I have bought a necklace in Africa with very big beads. I knew it was phenolic but there were very big and interesting for my collection, and I will send you a picture tomorrow. I am well afraid whether it is a bakelite bead or phenolic but not the amber. The amber buys itself in the gram and it is the bead which would cost very expensively.
I hope you understand my bad english!!!!! Good luck!