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
Rock music in Greece of the modern Greek rock as it is known today and this thanks to a bands from Thessaloniki: Trypes with their first album and two years later in 1987 a trio-band called Mora Sti Fotia - Μωρά στη Φωτιά (Babies on Fire), [veria]whose name was inspired by the song's title "Baby's on Fire" by Brian Eno. The band plays a combination of new wave, punk, soft and hard rock). One of the legendary bands of that era was En Plo (Εν Πλώ – loosely translated as “En route via a ship”). En Plo, got together in Athens in 1985 by