Some pendants I have (or had)
I only have the agate one ATM, but I NO have a different piece on goniatite.
The first (left) is an old ear plug I strung up with some hemp.
It's hand-bown glass fashioned to look like a galaxy. Really cool!
The second (top) is polished goniatite fossil, a cousin to ammonite, extinct sea creature similar to a nautilus, I wrapped it in some silver wire.
And the third (right) is a charm made with a piece of sliced, dyed agate. Also wrapped with silver wire.
Original craft works by Yoik