Carbonado compared to carbon‑12, relative to typical diamonds). Carbonado exhibits strong luminescence (photoluminescence and cathodoluminescence) induced by nitrogen and by vacancies existing in the crystal lattice. Luminescence halos are present around radioactive inclusions, and it is suggested that the radiation damage occurred after formation of the carbonados, an observation perhaps pertinent to the radiation hypothesis listed below. The origin of carbonado is controversial. Some proposed hypotheses are as follows: None of these hypotheses for carbonado formation had come into wide acceptance in the scientific literature by 2008. Supporters of an extraterrestrial origin of carbonados propose that their material source was a
This Is What Rock n' Roll Looks Like by Porcelain Black's image and sounds but favored her apparent perception of herself as the "offspring" of fellow musicians Britney Spears and Marilyn Manson and their individual styles. Porcelain Black performed the song on the "Late Show with David Letterman", marking her debut televised appearance. The song was featured in an episode of Beavis and Butthead and the 2013 film, "The Smurfs 2". "This Is What Rock n' Roll Looks Like" was written by Porcelain Black, Lil Wayne, RedOne, Bilal Hajji, with RedOne providing the song's production. In the song's writing credits, Porcelain Black and Lil Wayne are credited under