BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY
Autunite (hydrated calcium uranyl phosphate), an ore of uranium, a radioactive element. It is not now mined as a source of uranium, rather it is sought by mineral collectors for its fluorescing colours. It was the most widely used source of uranium during the development of the atomic bomb in the Second World War.
Model release not required. Property release not required.