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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
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.
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|Noun||1.||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
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