Lapis & jade pendants.

This is a small disc of jade, I purchased from a dealer who said it was from the yellow river valley in China?? It is a pretty creamy white and green. i am not sure if it is dyed or not, sorry I don't know much about this stone. There is a tiny cavity in the stone, seems to be a natural situation. see images, it is very sm. The blue one is free form shape, wedge of lapis lazuli with lots of pyrite flecks. This has a silver toned loop for a chain or ribbon. I took lots of pictures, see photo with tape measure for size.