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 their real names, Alaina Beaton and Dwayne Carter, Jr. respectively. After being introduced to Lil Wayne's manager, Derrick "EI" Lawrence, by producer RedOne, Porcelain Black stated that she met Lil Wayne in New York City when he heard "This Is What Rock n' Roll Looks Like", where he expressed an interest in adding his vocals to the song. The single cover for "This Is What Rock n' Roll Looks Like" was revealed on March 21, 2011, alongside a snippet of the song. "This Is What Rock n' Roll Looks Like" was released digitally through the United States iTunes Store on