Hi I live in Southern California and I found this yellow green mineral where the road was cut out between a canyon. I didn’t want to pick it up just in case but I found broken up stuff all falling down that had a smooth center so I thought I would be fine. I figured they are flint but when I was googling the yellow green mineral I came across radioactive minerals. Do you think this could be Carnotite? I touched them before I came across those radioactive minerals on google.