"A rare mineral containing boron and beryllium, typically occurring in pegmatites as colourless, white, or yellowish crystals associated with rubellite", Mid 19th cent.; earliest use found in London and Edinburgh Philosophical Magazine. From German Rhodizit from Hellenistic Greek ῥοδίζειν to be rose-like (from ancient Greek ῥόδον rose + -ίζειν) + German -it; so called because it colours the flame of a blowpipe red.[rhodizite etymology, rhodizite origin, 英语词源]