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
What Fresh Hell Is This? What Fresh Hell Is This? What Fresh Hell is This? is the fourth studio album by Art Bergmann, released in 1995 on Epic Records. The album gets its name from a quotation by American wit Dorothy Parker. The album was written primarily while Bergmann was in rehab, recovering from his prior battles with drug addiction. In its year end poll of its newspapers' music critics, Southam Newspapers named the album as one of the ten best albums of 1995, with "London Free Press" critic Ian Gillespie lauding Bergmann as "a Canadian rock genius, doomed to hover around the edges of