Radium seventh of a gram of radium. One kilogram of the Earth's crust contains about 900 picograms of radium, and one liter of sea water contains about 89 femtograms of radium. Radium was discovered by Marie Sklodowska-Curie and her husband Pierre Curie on 21 December 1898, in a uraninite (pitchblende) sample. While studying the mineral earlier, the Curies removed uranium from it and found that the remaining material was still radioactive. They separated out an element similar to bismuth from pitchblende in July 1898, that turned out to be polonium. They then separated out a radioactive mixture consisting mostly of two
Radium Cruiser the Mackenzie River for almost eight months of the year. Like her sister ship, "Radium Express", she was smaller than the "Radium King" and "Radium Queen", just long. In 2005 Atomic Energy of Canada published a study of the toxic legacy of the mining of radioactive ore at Port Radium. According to the report all but one of the surviving vessels of the Radium line were found to be free of contamination, with the exception of the "Radium Gilbert", but the disposition of the "Radium Cruiser" was not known. Radium Cruiser The Radium Cruiser was a Russel Brothers tugboat operated