Semseyite from Dumfriesshire1

G. F. Herbert Smith and G. T. Prior
Assistant in the Mineral Department of the British Museum.
Keeper of the Mineral Department of the British Museum.
1Published by permission of the Trustees of the British Museum. The paper was read under the title, ‘A plagionite-like mineral from Dumfriesshire.’

Mineralogical Magazine; November 1919 v. 18; no. 87; p. 354-359; DOI: 10.1180/minmag.1919.018.87.03
© 1919, The Mineralogical Society
Mineralogical Society (www.minersoc.org)