spes·sar·tite
(spĕs′ər-tīt′) also spes·sar·tine (-tēn′)n. A red to brownish-red mineral of the garnet group, Mn3Al2(SiO4)3.
[French, after Spessart, a hilly area of west-central Germany.]
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.
spessartite
(ˈspɛsəˌtaɪt) or spessartine
n (Minerals) a brownish-red garnet that consists of manganese aluminium silicate and is used as a gemstone. Formula: Mn3Al2(SiO4)3
[C19: named after Spessart, mountain range in Germany]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
spes•sart•ite
(ˈspɛs ərˌtaɪt)
n. a yellow or red manganese-aluminum garnet, used as a semiprecious gem.
[1885–90; after
Spessart, a district in Bavaria, where it is found; see
-ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.