Carbonado typical gem diamonds. Lead isotope analyses have been interpreted as documenting crystallization of carbonados about 3 billion years ago. The carbonados are found in younger sedimentary rocks. Mineral grains included within diamonds have been studied extensively for clues to diamond origin. Some typical diamonds contain inclusions of common mantle minerals such as pyrope and forsterite, but such mantle minerals have not been observed in carbonado. In contrast, some carbonados do contain inclusions of minerals characteristic of the Earth's crust: these inclusions do not necessarily establish formation of the diamonds in the crust, however, because while these obvious crystal inclusions occur
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