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
You Are What You Is The title track "You Are What You Is" is an up-tempo pop rock style song that was released as a music video in 1984. The album was first issued on LP by Barking Pumpkin Records (distributed by CBS) in 1981. In 1981, it also received a very brief (and now very rare) issue on 8-track tape, catalog number WAX-37537 (Barking Pumpkin label, distributed by CBS). It received a worldwide release on both Ryko and Zappa Records CD in 1990, and was standardized under the Ryko banner in 1995. The digital master prepared for both the original Ryko/Zappa Records release and