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A yellow to brown or red mineral, CdS, the only ore of cadmium.

[After Charles Murray Cathcart, Second Earl Greenock (1783-1859), British soldier.]
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 rare yellowish mineral consisting of cadmium sulphide in hexagonal crystalline form: the only ore of cadmium. Formula: CdS
[C19: named after Lord C. C. Greenock, 19th-century English soldier]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈgri nəˌkaɪt)

a yellow mineral, cadmium sulfide, CdS, associated with zinc ores.
[1840–45; after Charles Cathcart, Lord Greenock (1807–43), Englishman who discovered it; 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.greenockite - ore of cadmium; a rare yellowish mineral consisting of cadmium sulphide in crystalline form
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.
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References in periodicals archive ?
(h) Plane-polarized reflected light photomicrograph showing aggregate of altaite, greenockite, and petzite in galena.
As shown in Figure 3, the XRD pattern of the as-prepared CdS showed some sharp peaks at 20 value of 24.6[degrees], 26.3[degrees], 28.0[degrees], 43.3[degrees], 47.7[degrees], and 51.6[degrees], which were assigned to the CdS (JCPDS number 75-1545) greenockite phase (100), (002), (101), (110), (103), and (112), respectively.
His written catalog of minerals was begun in 1832, but he had clearly been collecting since at least 1816, when he records finding "blende" (later shown to be greenockite) at Kilpatrick.
O metal cadmio (Cd), de numero atomico 48 e peso atomico 111,40, e obtido a partir do minerio greenockite (CdS), mas pode ser tambem subproduto do tratamento dos minerios de zinco, chumbo e cobre por eletrolise ou fundicao.
25 Greenockite is the only mineral ore for which toxic metal element?
These biggies included matlockite, greenockite, harmotome, susannite, and others from Scottish localities.
42 Greenockite is one of very few minerals to contain which rare metal element, symbol Cd?
Greenockite and allophane were also deposited in this stage.
Dark brown sphalerite in the Last Dollar mine contained much cadmium, possibly as greenockite inclusions or coatings (Lindgren and Ransome, 1906).
(1951) A new locality for greenockite crystals in Bolivia American Mineralogist, 36, 165-166.