11 letters · 24 points in Scrabble
noun a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone
originFrom Latin chrysoberyllus, from Ancient Greek χρῡσοβήρυλλος (khrūsobḗrullos, “gold beryl”), from χρυσός (khrusós, “gold”) after its color, and βήρυλλος (bḗrullos, “beryl”), equivalent to chryso- + beryl.
Etymology from Wiktionary, CC BY-SA 3.0