ankerite

an·ker·ite

 (ăng′kə-rīt′)
n.
A white, gray, or red iron-rich dolomitic or carbonate mineral, Ca(Fe,Mg,Mn)(CO3)2.
[After Matthias Joseph Anker (1771-1843), Austrian mineralogist.]
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.

ankerite

(ˈæŋkəˌraɪt)
n
(Minerals) a greyish to brown mineral that resembles dolomite and consists of a carbonate of calcium, magnesium, and iron. Formula: (Ca,Mg,Fe)CO3
[C19: named after M. J. Anker (died 1843), Austrian mineralogist]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

an•ker•ite

(ˈæŋ kəˌraɪt)

n.
a carbonate mineral related to dolomite but with iron replacing part of the magnesium.
[1835–45; after M. J. Anker (d. 1843), Austrian mineralogist; see -ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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