lepidolite

[ li-pid-l-ahyt, lep-i-dl- ]

noun

1. a mineral of the mica group, potassium lithium aluminum silicate, commonly occurring in lilac, rose-colored, or whitish scaly masses: an ore of lithium.

lepidolite

/ ˈlɛpɪdəˌlaɪt; lɪˈpɪdəˌlaɪt /

noun

1. a lilac, pink, or greyish mica consisting of a hydrous silicate of lithium, potassium, aluminium, and fluorine, containing rubidium as an impurity: a source of lithium and rubidium. Formula: K 2 Li 3 Al 4 Si 7 O 21 (OH,F) 3

Word History and Origins

Origin of lepidolite¹

First recorded in 1790–1800; lepido- + -lite