What is "stauroscope"

Stauroscope \Stau"ro*scope\ (st[add]"r[-o]*sk[=o]p), n. [Gr. stayro`s a cross + -scope.] (Crystallog.) An optical instrument used in determining the position of the planes of light-vibration in sections of crystals.

n. (context crystallography English) An optical instrument used in determining the position of the planes of light-vibration in sections of crystals.

A stauroscope is an optical instrument used in determining the position of the planes of light-vibration in sections of crystals. The word comes from Greek for cross + scope. It was invented by Wolfgang Franz von Kobell in 1855.