andradite

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an·dra·dite

 (ăn-drä′dīt)
n.
A green to brown or black calcium-iron garnet, Ca3Fe2(SiO4)3.

[After José Bonifácio de Andrada e Silva.]
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.

andradite

(ˈændrəˌdaɪt)
n
(Minerals) a yellow, green, or brownish-black garnet that consists of calcium iron silicate and is used as a gemstone. Formula: Ca3Fe2(SiO4)3
[C19: named after J. B. d'Andrada e Silva (1763–1838), Brazilian mineralogist; see -ite1]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

an•dra•dite

(ˈæn drəˌdaɪt)

n.
a garnet occurring in brown, green, or black crystals.
[1830–40; after J. B. de Andrada e Silva; see -ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.andradite - a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black; used as gemstone
garnet - any of a group of hard glassy minerals (silicates of various metals) used as gemstones and as an abrasive
demantoid - a green andradite used as a gemstone
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
A new deposit of andradite garnet of the demantoid and topazolite varieties has recently been discovered in Antetezambato, Ambanja area, Antsiranana province, North Madagascar.
Demantoid garnet is a rare and beautiful bright grass green sub-variety of andradite garnet.Tsavolite, is a bright green variety of grossular garnet, its colour being induced by the presence of chromium.