catapleiiten.

/katəˈpliːʌɪt/Etymology: Named 1850, < Greek κατά together with + πλεῖον more + -ite suffix1, because it occurs along with several other minerals.
Mineralogy.
1854 J. D. Dana (1868) 401.
This entry has not yet been fully updated (first published 1889; most recently modified version published online June 2018).