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A pale green or apple-green mineral, (Ni, Mg)3Si2O5(OH)4, used as a gemstone and as an important nickel ore.

[After Jules Garnier, 19th-century French geologist.]
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.


(Minerals) a green amorphous mineral consisting of hydrated nickel magnesium silicate: a source of nickel
[C19: named after Jules Garnier (died 1904), French geologist]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈgɑr ni əˌraɪt)

an earthy green mineral, hydrous nickel magnesium silicate: an important ore of nickel.
[1875; after Jules Garnier (d. 1904), French geologist; 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.garnierite - a green mineral consisting of hydrated nickel magnesium silicate; a source of nickel
atomic number 28, Ni, nickel - a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
It exists primarily as pentlandit (NiFe)S and garnierite (Ni, Mg) Si[O.sub.3].x[H.sub.2]O in nature.
In Vein 51, Ait Ahmane, annabergite formed by the hydrothermal alteration of gersdorffite has been found as beautiful green leafy crystals in quartz, with massive "garnierite" and pale green, microcrystalline, nickel-rich talmessite.
The oxidised outcrop of the deposit forms a gossan including goethite, malachite and garnierite with metal contents of 0.4-0.7% Ni, 0.4-0.7% Cu, 05-1.0 g/tPt and 0.5-1.Og/tPd.