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 Of Sort Of Sort Of is the debut studio album by the avant-rock band Slapp Happy. It was recorded in Wümme, Germany in May and June 1972 with Faust as their backing band, and released on LP by Polydor Records in 1972. In 1980 Recommended Records released a limited edition of "Sort Of" on LP, and the album was reissued on CD by Blueprint Records in 1999 with one bonus track. All titles written by Peter Blegvad and Anthony Moore. "Sort Of" was released on CD by Blueprint Records in 1999 with an extra track (from the B-side of their single