or bast·näs·ite



a rare-earth mineral, fluorocarbonate of lanthanum and cerium, with a waxy-yellow to reddish-brown color, commonly associated with zinc ores.

Nearby words

  1. bastinade,
  2. bastinado,
  3. basting,
  4. bastion,
  5. bastionary,
  6. bastogne,
  7. bastrop,
  8. basuto,
  9. basutoland,
  10. basw

Origin of bastnaesite

named after Bastnäs, mine in Sweden; see -ite1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for bastnaesite




a rare yellow to reddish-brown mineral consisting of a carbonate of fluorine and several lanthanide metals. It occurs in association with zinc and is a source of the lanthanides. Formula: LaFCO 3

Word Origin for bastnaesite

C19: from Swedish bastnäsit, after Bastnäs, Sweden, where it was found

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012