Slate (writing) expensive. 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
Alan (given name) Iranian "*aryāna", "noble people") because the long vowel in the second syllable would produce Old Breton "-o-", Middle Breton "-eu-" and Modern Breton "-e-" and not the attested spelling with an "-a-". In Ireland and Gaelic-speaking Scotland, Alan may also be an Anglicization of an Irish word (with diminutive suffix) meaning "rock". For example, the modern Irish "ailín" means "little rock". Similarly, according to Patrick Woulfe, the Irish name "Ailín" is derived from diminutive "ail", which means "noble", "rock". Woulfe stated that this name is a pet form of some other name beginning with the first element "Ail-". Forms of