Etymology: German katapleiit, from Greek kata in the region of, down + pleiōn more + -it -ite; from its occurence together with other rare minerals — more at cata-, pleonasm
: a rare mineral (Na2,Ca)ZrSi3O9.2H2O consisting of hydrous silicate of sodium, calcium, and zirconium occurring in thin tabular yellow or yellowish brown crystals (hardness 6, specific gravity 2.8)
* * *
catapleiite Min.(kætəˈpliːaɪt)
[Named 1850, f. Gr. κατά together with + πλεῖον more + -ite, because it occurs along with several other minerals.]
A hydrous silicate of zirconium and sodium; a hexagonal opaque mineral of light yellowish-brown colour.
Dana Min. (1868) 401.
Useful english dictionary. 2012.