pyrochlore
Noun. (mineral) A mineral whose composition is that of a mixed niobate mostly of sodium, calcium and cerium, (Na,Ca)2Nb2O6(OH,F).This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.