Lake Ellen Kimberlite the material, though few are of gem quality and size. While there was considerable interest in diamond exploration in Michigan’s Upper Peninsula and northern Wisconsin for several years, no diamonds of commercial interest have been found. Lake Ellen Kimberlite The Lake Ellen Kimberlite is a poorly exposed volcanic breccia located about northeast of Crystal Falls in the Upper Peninsula of Michigan. The first publication in 1981 describing the feature led to speculation that this or similar kimberlites in the area might have been the source of the diamonds discovered a century before in Wisconsin as well as a period of
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