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
Name change Document Verification Service. In Canada a person can informally call themselves whatever they want. In all provinces except Quebec, when someone gets married they can change their last name without legally changing their name by using their Marriage Certificate as verification of the name change. It is almost impossible for married women in Québec to take their husbands' names. Like the United States, the requirements for a formal name change varies from province to province. Except for Ontario, British Columbia and New Brunswick, Canadians must be 18 to change their names and have lived in the province they are changing