zirkelite

Ferdinand Zirkel (1838-1912), German petrographer, +‎ -ite.

zirkelite (usually uncountable, plural zirkelites)

1. (mineralogy) An isometric oxide mineral with the chemical formula (Ca,Th,Ce)Zr(Ti,Nb)₂O₇.

• David Barthelmy (1997–2024) “Zirkelite”, in Webmineral Mineralogy Database.
• “zirkelite”, in Mindat.org‎^[1], Hudson Institute of Mineralogy, 2000–2024.