Having good cleavage. Used of minerals.

[German Spah, Spath, spar (from Middle High German spāt) + -ic.]
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.


(ˈspæθɪk) or


(Minerals) (of minerals) resembling spar, esp in having good cleavage
[C18: from German Spat, Spath spar3; related to Old High German spān chip; see spoon]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
The lithologic character of Shanxi Formation is mainly feldspar debris quartz sandstone, followed by a few of field spathic lithic sandstone and lithic sandstone.
A wide variety of other types have also been found, including specimens with (1) spongy grey matrix, (2) brecciated matrix, (3) spongy matrix composed of fine to medium-grained green crystals of garnet, (4) spongy matrix composed of partially altered fossiliferous sandstone, (5) massive matrix composed of fine-grained aggregates of garnet and calcite, crosscut by coarse-grained veins of spathic calcite, and so on.