Radium chloride radium chloride is weakly paramagnetic with a magnetic susceptibility of 1.05. It also differs from barium chloride by the flame color, which is red as opposed to green for barium chloride. Radium chloride is still used for the initial stages of the separation of radium from barium during the extraction of radium from pitchblende. The large quantities of material involved (tonnes of ore for milligrams of radium) favour this less costly (but less efficient) method over those based on radium bromide or radium chromate (used for the later stages of the separation). It was also used in medicine to produce
Radium Hill Radium Hill Radium Hill is a former minesite in South Australia which operated from 1906 until 1961. It was Australia's first uranium mine, years before the country's next major mines at Rum Jungle in the Northern Territory (opened in 1950), and the Mary Kathleen mine in Queensland (1958). The associated settlement which once housed up to 1,100 people is now a ghost town, largely abandoned and demolished. The former townsite and cemetery were provisionally listed on the South Australian Heritage Register on 24 August 2016. During its main period of production between 1954 and 1961 the mine produced nearly 1