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A fine-grained laminated rock formed by the shifting of rock layers along faults.

[Greek mulōn, mill (from mulē, handmill; see melə- in Indo-European roots) + -ite.]
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.


(ˈmaɪləˌnaɪt; ˈmɪlə-)
(Geological Science) a fine-grained metamorphic rock, often showing banding and micaceous fracture, formed by the crushing, grinding, or rolling of the original structure
[C19: from Greek mulōn mill]
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 ?
In the west of Iran recognized shear zone, accommodated mylonite zone that related to the closure of Neo-Tethys and Zagros orogeny contractional event (Mohajjel and Fergusson, 2000; Agard et al., 2005; Allen and Amstrong, 2008; Agard et al., 2011; Mouthereau et al., 2012).
Moreover, a great quantity of winding and rub can not only produce more mylonite or other broken coals but also seal original cleats, micro-fractures, and seepage pores for C[O.sub.2] transport [49].
Tectonically, the Mamfe Basin is thought to have been formed during Late Jurassic-Early Cretaceous as a result of basement rifting associated with the reactivation of an EW trending mylonite zone within the Pan-African basement [12].
In easternmost Maine near the New Brunswick border, the Codyville fault separates Miramichi sedimentary rocks from ductilely sheared mylonite derived from Flume Ridge turbidites.
Due to thrusting of this anticline the southwestern limb of Muzaffarabad anticline is mostly crushed showing fault breccia, mylonite, gouge and slickenside of bed rocks.
Borrego Springs-Santa Rosa mylonite zone: a late Cretaceous west-directed thrust in southern California"Geology12, 8-11(1984)
The southern limit of the Chidue Formation rocks is marked by a wide mylonite zone striking at 290 degrees and dipping 45 degrees to the southwest.
Stone particles of varying composition (mylonite, gabbro, feldspar, basalt, and quartz) induced different cytokine responses in rat AMs [41].
The project area includes the Roopena Fault and Kalinjala Mylonite structures, which offer potential sites for economic deposits sourced from Hiltaba granites to the north and in the eastern portion of the project area.
Of course rock is created from the bottom up, but the accepted explanation is an anomaly in which complete plates were forced up and over shallower ones using a layer of fine-grained mylonite limestone as a lubricant.