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1. An ore of iron, FeCO3.
2. A meteorite consisting mainly of iron and nickel.

sid′er·it′ic (-ə-rĭt′ĭk) adj.
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.


1. (Minerals) Also called: chalybite a pale yellow to brownish-black mineral consisting chiefly of iron carbonate in hexagonal crystalline form. It occurs mainly in ore veins and sedimentary rocks and is an important source of iron. Formula: FeCO3
2. (Astronomy) a meteorite consisting principally of metallic iron
sideritic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsɪd əˌraɪt)

1. a brown or yellow mineral, iron carbonate, FeCO3.
2. a meteorite consisting almost entirely of iron.
[1845–50; < Greek sídēr(os) iron + -ite1]
sid`er•it′ic (-ˈrɪt ɪk) adj.
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.siderite - iron ore in the form of ferrous carbonate
iron ore - an ore from which iron can be extracted
2.siderite - a meteorite consisting principally of nickel and iron
meteorite - stony or metallic object that is the remains of a meteoroid that has reached the earth's surface
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References in periodicals archive ?
The most important effect of pH is indirect and relates to how pH changes conditions for formation of ferrous carbonate layers in a C[O.sub.2]-driven corrosion process.
Ranch House Trace Mineralized Salt listed sodium chloride (salt), calcium sulfate, iron oxide, manganous oxide, zinc oxide, ferrous carbonate, calcium carbonate, copper oxide, calcium iodate, cobalt carbonate, sodium selenite, and molasses products, with natural and artificial flavors added.
The FDA list of iron compounds generally recognized as safe (GRAS) includes elemental iron, ferrous ascorbate, ferrous carbonate, ferrous citrate, ferrous fumarate, ferrous gluconate, ferrous lactate, ferrous sulfate, ferric ammonium citrate, ferric chloride, ferric citrate, ferric pyrophosphate and ferric sulfate.