not visible in either of the previously posted photos (apologies for the oversight!).
It is to the very left of the image below.
It is a bead that is decidedly of the same material as the others, but brownish in color and more opaque in feeling.
I'll post a closer image when I get some daylight tomorrow.
Also... I've never seen jet with the cavities that these beads have, some empty and others with a woody stem like thing lodged in there.
Have you seen this faceted onion shape before?
Many thanks for the response.
LD