Group 3 element it from pitchblende residues left by Marie and Pierre Curie after they had extracted radium. In 1899, Debierne described the substance as similar to titanium and (in 1900) as similar to thorium. Friedrich Oskar Giesel independently discovered actinium in 1902 as a substance being similar to lanthanum and called it "emanium" in 1904. After a comparison of the substances half-lives determined by Debierne, Hariett Brooks in 1904, and Otto Hahn and Otto Sackur in 1905, Debierne's chosen name for the new element was retained because it had seniority, despite the contradicting chemical properties he claimed for the element at different
Pitchblende (band) Pitchblende (band) Pitchblende was a four-piece art punk band from Washington, D.C., composed of Justin Chearno on guitar, Scott DeSimon on bass guitar, Patrick Gough on drums and Treiops Treyfid on guitar. Between 1991 and 1995, the group recorded three full-length albums and several singles for the independent labels Cargo, Jade Tree, Matador Records and Simple Machines. Although based in Washington, Pitchblende's dense, angular sound was commonly thought to be closer in style to the contemporary music scenes in New York City and Chicago than what was heard on the DC-based post-punk labels at the time. Central to Pitchblende's approach