On the Blue Colour of Natural Banded Fluorites

Georges Calas

Laboratorie de Minéralogie-Cristallographie Université de Paris VI

Mineralogical Magazine; December 1972 v. 38; no. 300; p. 977-979; DOI: 10.1180/minmag.1972.038.300.13
© 1972, The Mineralogical Society
Mineralogical Society (www.minersoc.org)