M.J.Pearson: Francolite from Yorkshire

Mike J. Pearson

Department of Geology and Mineralogy, The University, Marischal College, ABERDEEN, AB9 1AS

Mineralogical Magazine; December 1977 v. 41; no. 320; p. M4-M6; DOI: 10.1180/minmag.1977.041.320.35
© 1977, The Mineralogical Society
Mineralogical Society (www.minersoc.org)