The manganese minerals
Subtitle: their identification and paragenesis
By: [By] Geo. A. Thiel ...
Published: 1924
Place of publication: Lancaster, Pa.]
Language: eng
Number of pages: 145
Subjects: Manganese ores
Notes: Cover-title.

"Reprinted from Economic geology, vol. XIX, no. 2, March, 1924."

Thesis (PH. D.)--University of Minnesota, 1923.

Bibliographical foot-notes.