/85/ Astatine occurs in vanishingly small quantities in the natural decay chains of uranium and thorium minerals. can't see any of it in this rock, but a few atoms are (probably) there from time to time.
/85/ Astatine occurs in vanishingly small quantities in the natural decay chains of uranium and thorium minerals. can't see any of it in this rock, but a few atoms are (probably) there from time to time.