Definition of achroite in English:

achroite

noun

Mineralogy
  • A colourless variety of tourmaline.

Origin

Mid 19th century. From German Achroït from ancient Greek ἄχροος colourless + German -it.

Pronunciation:

achroite

/ˈakrəʊʌɪt//ˈeɪkrəʊʌɪt/