from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A rare boro-silicate mineral with the chemical formula (Mg,Fe2+)4(Al,Fe3+)6(SiO4,BO4)5(O,OH)2, some varieties of which are valued as gemstones.
from The Century Dictionary and Cyclopedia
- n. A silicate of aluminium and magnesium, MgAl2SiO6, occurring in from colorless to white fibrous or columnar aggregates: found at Fiskernäs, Greenland. Prismatine, from Waldheim, Saxony, is a similar mineral.
Andreas Nikolaus Kornerup (1857–1883), Danish geologist + -ite. (Wiktionary)
Sorry, no example sentences found.
Wordnik is becoming a not-for-profit! Read our announcement here.