dumortierite

[ doo-mawr-tee-uh-rahyt, dyoo- ]
/ duˈmɔr ti əˌraɪt, dyu- /

noun

a mineral, aluminum borosilicate.

Origin of dumortierite

1880–85; < French, named after Eugène Dumortier, 19th-century French paleontologist; see -ite1

British Dictionary definitions for dumortierite

dumortierite
/ (djuːˈmɔːtɪəˌraɪt) /

noun

a hard fibrous blue or green mineral consisting of hydrated aluminium borosilicate. Formula: Al 7 O 3 BO 3 (SiO 4) 3

Word Origin for dumortierite

C19: named after Eugène Dumortier, 19th-century French palaeontologist who discovered it