Yellow opal - a non-gemmy (common) opal ranging from cream with lots of inclusions to translucent yellow. I personally find the more included stones more fascinating. Each could stand on its own as a pendant, or make something fabulous with all of them.
14mm x 30mm Hole is side to side. Approx. 13 on approx. 15 inch (38.1 cm) strand. (strand)