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
Deed of change of name Deed of change of name A deed of change of name is a legal document—used in the United Kingdom, Ireland and some other countries with legal systems based on English common law—for an official name change by a person or family. It is one use of a deed poll. Some organisations, such as government departments issuing passports and driving licences, may not recognise a name change without documentation, such as a deed or statutory declaration. However, an official document is not a legal requirement for a valid name change according to common law. In England and Wales, such a deed