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gehlenite

American  
[gey-luh-nahyt] / ˈgeɪ ləˌnaɪt /

noun

  1. a mineral, aluminum calcium silicate, occurring in prismatic crystals varying in color from gray-green to brown.

gehlenite British  
/ ˈɡeɪləˌnaɪt /

noun

  1. a green mineral consisting of calcium aluminium silicate in tetragonal crystalline form. Formula: Ca 2 Al 2 SiO 7

"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

Etymology

Origin of gehlenite

1810–20; named after A. F. Gehlen (1775–1815), German chemist; -ite 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.