stillwellite

English

Etymology

Named after Australian mineralogist Frank Leslie Stillwell (1888–1963), +‎ -ite. As a rare earth mineral ore, it usually requires a suffix of the element (i.e. Stillwellite-(Ce)).

Noun

stillwellite (uncountable)

1. (mineralogy) A trigonal-pyramidal rare earth borosilicate mineral.

Further reading

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