Pericline and Acline-A Twins in the Acid Plagioclases

F. Coles Phillips
Fellow of Corpus Christi College, Cambridge

Mineralogical Magazine; March 1930 v. 22; no. 128; p. 225-230; DOI: 10.1180/minmag.1930.022.128.04
© 1930, The Mineralogical Society
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