🌐EnglishEnglishEspañolItalianoPortuguêsTiếng Việtالعربيةفارسی中文日本語EntityQ3755249· pop 10· linked from 45 articlesoptical mineralogyThe optical properties of rocks and mineralsConnectionsrockEntityInternational Standard Book NumberEntityCategories1911 Britannica articles needing updates from January 2011Optical mineralogyPolarization (waves)