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 (sə-mär′skīt′, săm′ər-)
A velvet-black mineral that is a complex mixture of several rare-earth elements with niobium and tantalum oxide.

[After Vasili Evgrafovich Samarski-Bykhovets (1803-1870), Russian mining official who provided access to mineral samples from the Urals to the German mineralogists who first identified samarskite and analyzed its composition.]
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 velvety black mineral of complex composition occurring in pegmatites: used as a source of uranium and certain rare earth elements
[C19: named after Colonel von Samarski, 19th-century Russian inspector of mines]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(səˈmɑr skaɪt)

a velvet-black mineral containing uranium, samarium, cerium, etc., occurring in masses: a minor source of uranium and rare-earth oxides.
[< German Samarskit (1847), after Russian mining engineer V.E. Samarskiĭ-Bykhovets (1803–70); 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.samarskite - a complex black mineral occurring in pegmatites
atomic number 64, gadolinium, Gd - a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
pegmatite - a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Their efforts were rewarded when they found samarskite as dark terminated crystals up to 2.5 cm.
In the same year, Lecoq de Boisbaudran, who had discovered gallium (see 1874), identified a new rare earth element, which he named samarium, because he had found it in a mineral called samarskite, which, in turn, bore the name of an otherwise obscure Russian mining engineer named Samarski.
Something glassy black: "Samarskite," labeled "radioactive' no less.
He hauled out a large, but not very attractive crystal of "ampangabeite" (samarskite) and told them that in order to acquire the crystal he had to buy the mine in Madagascar from which it came.
(10) Ferrotantalite-Ferrocolumbite + Stibiotantalite + Samarskite + Pyrochlore + Thorogummite + Quartz