Mindat Logo

Questa Molybdenum Mine (Questa Mine; Moly Mine; R and S Mine), Questa, Taos Co., New Mexico, USA

Molybdenite
Questa Molybdenum Mine, Questa, Taos Co., New Mexico, USA

Photo: Charles Creekmur
Latitude: 36°42'15"N
Longitude: 105°30'23"W
An active molybdenum-rhenium mine owned by Molycorp, a subsidiary of Unocal Corp. Produced 4,760 tons of Mo in concentrates (1984).

Located nine miles from Questa, the mine opened in 1916 as the R&S Molybdenum mine. It was purchased by Molycorp Minerals in 1950 and became a subsidiary of Chevron in 2005. Formerly an open pit excavation, the Chevron Questa mine has operated as an underground mine since 1982.

Mineral List

Alunite
'Apatite'
Beryl
'Biotite'
Calcite
Chalcopyrite
'Chlorite Group'
Epidote
Ferrimolybdite
Fluorite
Galena
Graphite
Gypsum
Hematite
Hübnerite
Jarosite
Kaolinite
'Limonite'
Magnetite
Malachite
Molybdenite
Muscovite
var: Sericite

Orthoclase
Pyrite
Quartz
Rhodochrosite
Rhodonite ?
Rutile
Scheelite
Sphalerite
'Wad'


31 entries listed. 25 valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

J. H. Schilling, (1956) Geology of the Questa Molybdenum Mine Area, Taos County, New Mexico. NMBGMR Bulletin 51.

K. F. Clark and C. B. Read, (1972) Geology and Ore Deposits of Eagle Nest area, New Mexico. NMBGMR Bulletin 94.

Mining Annual Review (1985): 118 & 331.

Cline, Jean S. & Bodnar, Robert J. (1994): Direct evolution of brine from a crystallizing silicic melt at the Questa, New Mexico, molybdenum deposit. Economic Geology 89, 1780-1802.

Campbell, A.R., and Lueth, V.W. (2008): Isotopic and textural discrimination between hypogene, ancient supergene, and modern sulfates at the Questa Mine, New Mexico. Applied Geochemistry 23, 308-319.

Junxing Zhao, Kezhang Qin, Guangming Li, and Jinxiang Li (2011): Characteristics of alteration and mineralization in the Sharang porphyry molybdenum deposit in the northern margin of Gangdese and comparison with typical porphyry molybdenum deposits in the world. Geology and Exploration 47(1), 54-70.

External Links


This page is currently not sponsored. To sponsor this page click here.


Mineral and/or Locality  
Search Google  
Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: September 19, 2014 03:49:41 Page generated: August 4, 2013 02:28:23
Mineral and Locality Search
Mineral:
and/or Locality:
Options
Fade toolbar when not in focusFix toolbar to bottom of page
Hide Social Media Links
Slideshow frame delay seconds