turmalina
∗turmalina
feminine noun
1tourmaline
Copyright © 2006 Chambers Harrap Publishers Limited
turmalina [toor-mah-lee’-nah]
noun
1Tourmaline, a translucent mineral of various colors, generally blackish: schorl. (Mineral) (f)
It is a complex aluminum-boron silicate: used in polariscopes.
