East Coastamite Philadelphia East Coastamite is a rare, radioactive mineral first described by Lord McKinley Morganfield in 1832. East Coastamite’s tracks Atoms! Atoms! Atoms! by East Coastamite published on 2014-07-31T19:59:54Z Rhumba Azul by East Coastamite published on 2013-06-26T12:29:18Z Morning Glory by East Coastamite published on 2013-04-18T14:20:37Z Sea of Bees by East Coastamite published on 2012-12-11T13:22:40Z Chank-a-Lank by East Coastamite published on 2012-10-20T01:11:10Z Polonium-210 by East Coastamite published on 2012-06-17T20:27:14Z