'''Pericline''' may refer to any of the following geological or mineralogical structures: * A doubly plunging anticline or syncline. * A form of albite exhibiting elongate prismatic crystals.<ref>{{cite web |title=Pericline |url=https://www.mindat.org/min-4518.html |website=mindat.org |publisher=Hudson Institute of Mineralogy |access-date=8 March 2026}}</ref> * Pericline twinning, a type of crystal twinning in which crystals show fine parallel twin laminae, typically found in the alkali feldspar microcline.<ref>Hurlbut, Cornelius S.; Klein, Cornelis, 1985, ''Manual of Mineralogy'', p. 100, 20th ed., {{ISBN|0-471-80580-7}} </ref> The twinning results from a structural transformation between high temperature and low temperature forms.<ref>Tsatskis, I. and E.K.H. Salje (1996) ''Time evolution of pericline twin domains in alkali feldspars'', American Mineralogist, Volume 81, pages 800-810 [http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Tsatskis_p800-810_96.pdf PDF]</ref>
==References== {{Reflist}}
Category:Crystallography Category:Feldspar group Category:Structural geology
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