Rare Earth Elements: A Review of Production, Processing ...
Rare Earth Elements: A Review of Production, Processing ...
Rare Earth Elements: A Review of Production, Processing ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>Rare</strong> <strong>Earth</strong> <strong>Elements</strong> <strong>Review</strong> Appendix B – REE Mines and Mineral Deposits in the U.S.<br />
State /<br />
Province Deposit Type<br />
Other Igneous-<br />
Affiliated<br />
Arizona (including<br />
Pegmatites and<br />
Veins)<br />
Arkansas Carbonatite With<br />
Residual<br />
Enrichment<br />
California<br />
Colorado<br />
Map<br />
Reference<br />
No (Figure<br />
3-1) Deposit Name Status Company Comments<br />
Orris, et<br />
al. a<br />
Long, et<br />
al. b<br />
297 Mineral X Occurrence — — � — — —<br />
306 Signal district Occurrence — — � — — —<br />
128 Magnet Cove Past small<br />
producer rut,<br />
mag<br />
Carbonatite 59 Mountain Pass Current<br />
producer<br />
Molycorp<br />
(2000)<br />
Gupta,<br />
et al. c<br />
Schüler,<br />
et al. d<br />
— — � — — —<br />
Metamorphic 342 Music Valley Occurrence — REE, Nb, and Th occur in veins and carbonatite<br />
dikes. Prov ince includes Gem Park, McClure Mtn-<br />
Iron Mtn, Democrat Creek, and other occurrences.<br />
Other Igneous-<br />
Affiliated<br />
(including<br />
Pegmatites and<br />
Veins)<br />
305 Pomona Tile<br />
Company<br />
— � � � �<br />
� � �<br />
Occurrence — — � — — —<br />
Placer, Shoreline 563 Soledad Occurrence — In Los Angeles County. � — — —<br />
104 Wet Mountains Occurrence — REE, Nb, and Th occur in veins and carbonatite dikes.<br />
Province includes Gem Park, McClure Mtn-Iron Mtn,<br />
Democrat Creek, and other occurrences.<br />
� � �<br />
Carbonatite<br />
31 Gem Park Past prod <strong>of</strong><br />
vrm, Ni, Ag<br />
— Carbonatitic dikes. Concentrations <strong>of</strong> Th, REE, Cu, P,<br />
and vermiculite have not been fully appraised.<br />
� — — —<br />
36 Iron Hill Ti resource/ Teck<br />
— � � �<br />
(Powderhorn, prospect Resources<br />
Cebolla Creek)<br />
Corp.<br />
Other Igneous- 307 South Platte Occurrence — — � — — —<br />
Affiliated<br />
(including<br />
Pegmatites and<br />
Veins)<br />
District<br />
B-2