A New Locality for Voelckerite and the Validity of Voelckerite as a Mineral Species1
Austin F. Rogers
Associate Professor of Mineralogy and Petrography, Leland Stanford Junior University, California.
1With the addition of some new observations, this paper presents in an amplified form a portion of the material of the author's earlier (1912) paper on the minerals of the apatite group.—Ed.