Kimberlite and of those just over 30 have been economic enough to diamond mine. The deposits occurring at Kimberley, South Africa, were the first recognized and the source of the name. The Kimberley diamonds were originally found in weathered kimberlite, which was colored yellow by limonite, and so was called "yellow ground". Deeper workings encountered less altered rock, serpentinized kimberlite, which miners call "blue ground". See also Mir Mine and Udachnaya pipe, both in the Sakha Republic, Siberia. The blue and yellow ground were both prolific producers of diamonds. After the yellow ground had been exhausted, miners in the late 19th
Latin Grammy Award for Best Rock Album Latin Grammy Award for Best Rock Album The Latin Grammy Award for Best Rock Album is an honor presented annually by the Latin Academy of Recording Arts & Sciences at the Latin Grammy Awards, a ceremony that recognizes excellence and promotes a wider awareness of cultural diversity and contributions of Latin recording artists in the United States and internationally. According to the category description guide for the 2012 Latin Grammy Awards, the award is for vocal or instrumental rock albums containing at least 51 percent of newly recorded material. It is awarded to solo artists, duos or groups. The accolade