Does anyone know these swirled satin beads? They are a flat oval shape. There are mold lines around the perimeter.

This necklace arrived today. I was skeptical they were glass but I'm happy to say it is true. It's always fun to find a bead I haven't seen before, especially a necklace full of them. I am guessing they are imitation Russian Amazonite, but I doubt they would fool anyone.