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
Rock What You Got Rock What You Got Rock What You Got is the fifth album from the band Superchick. It was released on June 24, 2008. The album debuted at No. 65 on the "Billboard" 200 album chart, selling nearly 10,000 copies its first week. The band has described the album as more progressive, in-your-face sound and has dubbed it "rock-o-tronic". In May 2008, Inpop released three radio singles from the album. "Hold" was played on Christian contemporary hit radio stations, "Crawl" went to adult contemporary stations, and "Hey, Hey" to Christian rock stations. In late May, Inpop Records released a free download