xanthophylliten.

/zanθəʊˈfɪlʌɪt/Etymology: < German xanthophyllit (G. Rose, 1840), < Greek ξανθός yellow + ϕύλλον leaf + -ite suffix1 2b.
Mineralogy.
the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > mica > clintonite
1844 J. D. Dana (1862) 149.
This entry has not yet been fully updated (first published 1921; most recently modified version published online June 2018).