Dichroic Pigment-Layers in Blue John Fluorite

Norman Holgate

Department of Geology, The University of Glasgow, Glasgow, G12 8QQ

Mineralogical Magazine; September 1973 v. 39; no. 303; p. 363-366; DOI: 10.1180/minmag.1973.039.303.14
© 1973, The Mineralogical Society
Mineralogical Society (www.minersoc.org)