cryptocrystalline

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Related to Cryptocrystal: Macrocrystalline, Conchoidal fracture

cryp·to·crys·tal·line

 (krĭp′tō-krĭs′tə-lĭn, -līn′)
adj.
Having a microscopic crystalline structure.
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.

cryptocrystalline

(ˌkrɪptəʊˈkrɪstəlaɪn)
adj
(Minerals) (of rocks) composed of crystals that can be distinguished individually only by the use of a polarizing microscope
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

cryp•to•crys•tal•line

(ˌkrɪp toʊˈkrɪs tl ɪn, -ˌaɪn)

adj.
having a submicroscopic crystalline structure.
[1860–65]
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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