Good Afternoon everyone. I need some help! I was on the phone, when I looked down and found this rock. I live in Tucson, Az and I was walking around outside of my work, located next to a bunch of office buildings. The rock was in a bunch of solid color rocks that were much smaller than this. The rock is magnetic and heavier than It looks. I have put it up against every meteorite test I can find online and it seems to pass. I am having trouble identifying it. I would appreciate any input. Thank you everyone for your time.