[ al-uh-nahyt ]
/ ˈæl əˌnaɪt /
a member of the epidote group, a silicate of calcium, cerium, aluminum, and iron, occurring chiefly in brown-to-black masses or prismatic crystals.
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Origin of allanite
1835–45; named after Thomas Allan (1777–1833), English mineralogist; see -ite1
OTHER WORDS FROM allaniteal·la·nit·ic [al-uh-nit-ik] /ˌæl əˈnɪt ɪk/, adjective
Words nearby allanite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for allanite
/ (ˈæləˌnaɪt) /
a rare black or brown mineral consisting of the hydrated silicate of calcium, aluminium, iron, cerium, lanthanum, and other rare earth minerals. It occurs in granites and other igneous rocks. Formula: (Ca,Ce,La,Y) 2 (Al,Fe,Be,Mn,Mg) 3 (SiO 4) 3 (OH)
Word Origin for allanite
C19: named after T. Allan (1777–1833), English mineralogist
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