Slate (writing) Slate (writing) A slate is a thin piece of hard flat material, such as the rock also called slate, that is used as a medium for writing. The rock is “a metamorphic rock created by the recrystallization of the minerals in shale from clay to parallel-aligned, flat, flake-like minerals such as mica”. The writing slate consisted of a piece of slate, typically either 4x6 inches or 7x10 inches, encased in a wooden frame. A precise date range for writing slates of this type has not been established. Usually, a piece of cloth or slate sponge was used to clean it
Japanese name name (such as the name of a province, a river, or a sea), the name of a weapon, an item identified with Japanese tradition (like a koto or nishiki), or a term indicating superiority. Often, "waka" indicates a wrestler whose father was also in sumo; in this case, the meaning is "junior". Wrestlers can change their shikona, as Takahanada did when he became Takanohana () and then Takanohana (). Another notable example is the wrestler Sentoryu, which means "fighting war dragon" but is also homophonous with St. Louis, his city of origin. Geisha and practitioners of traditional crafts and arts