TY  - BOOK
AU  - Aurand,Harry A.
TI  - Fluorspar deposits of Colorado,
AV  - QE91 .A4 no. 18
PY  - 1920///
CY  - Denver, Col.
PB  - Eames brothers, state printers
KW  - Mines and mineral resources
KW  - Colorado
KW  - Fluorspar
N1  - At head of title: Colorado Geological survey, Boulder; "Bibliography of Colorado fluorspar": p. 87-88; "Bibliography of fluorspar in the United States": p. 89-91; Bibliographical footnotes
ER  -