Questa Molybdenum Mine (Questa Mine; Moly Mine; R and S Mine), Questa, Taos Co., New Mexico, USA
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
23 entries listed. 18 valid minerals.
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References
- 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.
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