xenoblast
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xen·o·blast
(zĕn′ə-blăst′, zē′nə-)n.
A metamorphic mineral that does not have characteristic mineral faces due to the conditions in which it grew.
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.
xenoblast
(ˈzɛnəʊˌblæst)n
(Geological Science) geology a type of mineral deposit formed during metamorphism that does not have a crystalline face
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014