kornerupine
noun
kor·ne·rup·ine
ˌkȯ(r)nəˈrüˌpēn,
-pə̇n
plural -s
: a mineral (Mg,Fe,Al)20(Si,B)9O43 consisting of a magnesium aluminum iron borosilicate resembling sillimanite in appearance
Word History
Etymology
Danish kornerupin, from A. N. Kornerup, 19th century Danish geologist + Danish -in -ine