NWOT carved bead black and white wire bookmark

Lovely NWOT carved beads wire bookmark. I believe they are made out of stone, but cannot remember the exact material. Handmade. Black and white minimalist chic. New in the bag - I only took it out to photograph. I bought many of these as gifts years ago and still had a few left. Measures approximately 14.5” in length, will fit most standard size books (not for oversized coffee table books).