Slate Slate Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. Foliation may not correspond to the original sedimentary layering, but instead is in planes perpendicular to the direction of metamorphic compression. The foliation in slate is called "slaty cleavage". It is caused by strong compression causing fine grained clay flakes to regrow in planes perpendicular to the compression. When expertly "cut" by striking parallel to the foliation, with a specialized tool in the quarry, many slates
Sort Sol Sunn O)), Akron Family and Kinski. The plan is to release "Whip Angeles" as a single in April 2014 and hopefully a whole album later this year. Sort Sol will also start their tour on April 12 in Greve, Denmark. Internationally renowned artists who have performed and/or recorded with the group include William S. Burroughs, Lydia Lunch, Link Wray, The Jordanaires, Sune Rose Wagner (of The Raveonettes) and Sissel Kyrkjebø. Sort Sol Sort Sol is a pioneer rock band from Copenhagen, Denmark. The band was formed in 1977 as a punk rock outfit, originally under the name Sods (stylized as