03.12.2012 Views

Rare Earth Elements: A Review of Production, Processing ...

Rare Earth Elements: A Review of Production, Processing ...

Rare Earth Elements: A Review of Production, Processing ...

SHOW MORE
SHOW LESS

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

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!