[ dat-l-ahyt ]
/ ˈdæt lˌaɪt /


a mineral, calcium and boron silicate, CaB(SiO4)(OH), usually occurring in rock cavities in the form of colorless, prismatic crystals.

Origin of datolite

1800–10; < German Datolith, equivalent to Greek dat(eîsthai) to divide, share out + -o- + German -lith; see -lite
Related formsdat·o·lit·ic [dat-l-it-ik] /ˌdæt lˈɪt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for datolite


/ (ˈdeɪtəˌlaɪt) /


a colourless mineral consisting of a hydrated silicate of calcium and boron in monoclinic crystalline form, occurring in cavities in igneous rocks. Formula: CaBSiO 4 (OH)

Word Origin for datolite

C19: dato- from Greek dateisthai to divide + -lite
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012