Francolite from Sedimentary Ironstones of the Coal Measures

T. Deans and H. C. G. Vincent

Department of Mineralogy and Petrology, University of Cambridge

Mineralogical Magazine; September 1938 v. 25; no. 162; p. 135-139; DOI: 10.1180/minmag.1938.025.162.04
© 1938, The Mineralogical Society
Mineralogical Society (www.minersoc.org)