In past updates, I would see zeiton 7 crystal everywhere in the overworld, but now I cannot seem to find it anywhere. I would also like to know where to find Autons and Gallifrey Sand. Could someone please help me?

(PS: I checked Gallifrey and I even used an X-ray Mod to look for it specifically and couldn’t find it)

I don’t mean to be a bother but someone please help