The Optical Orientation of Labradorite from County Down (Ireland) Determined by the Fedorov Method

W. Campbell Smith

Assistant-Keeper in the Mineral Department of the British Museum (Natural History).

Mineralogical Magazine; September 1928 v. 21; no. 122; p. 543-551; DOI: 10.1180/minmag.1928.021.122.02
© 1928, The Mineralogical Society
Mineralogical Society (www.minersoc.org)