gahnite
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gahn·ite
(gä′nīt′)n.
A brittle, dark green to brown or black mineral, ZnAl2O4.
[After Johan Gahn (1745-1818), Swedish mineralogist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
gahnite
(ˈɡɑːnaɪt)n
(Minerals) a dark green mineral of the spinel group consisting of zinc aluminium oxide. Formula: ZnAl2O4
[C19: named after J. G. Gahn (1745–1818), Swedish chemist; see -ite1]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
gahn•ite
(ˈgɑ naɪt)n.
a dark green to black mineral of the spinel group.
[1800–10; after J. German. Gahn (1745–1818), Swedish chemist]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.