TY  - RPRT
TI  - Fluorite in the United States, exclusive of Hawaii
AU  - Ronald G. Worl
AU  - Ralph Erskine Van Alstine
AU  - Allen Van Heyl
PY  - 1974
DO  - 10.3133/mr60
UR  - https://pubs.usgs.gov/publication/mr60
ID  - mr60
ER  -