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Aga Mine, Otto Mountain, Baker, San Bernardino Co., California, USA
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Latitude: 35°16'22"N
Longitude: 116°5'60"W
 
 
A former Au-Ag-Cu-Pb-Te mine located in sec. 26, T14N, R8E, SBM, about 1 mile NW of Baker. Formerly owned by Otto Fuetterer. MRDS database stated accuracy for this location is 10 meters.

Mineralization is a quartz vein Au deposit hosted in granite. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).

Workings include surface and underground openings comprised of an adit and trenches.

Reportedly 2 truckloads of ore were shipped during the WWII period.

Mineral List

Acanthite
Agaite (TL)
Anglesite
Brochantite
Burckhardtite
Calcite
Cerussite
Chlorargyrite
var: Bromian Chlorargyrite
Chrysocolla
Eckhardite (TL)
Fairbankite
Fluorite
Galena
Goethite
Gold
Hemimorphite
Hessite
Housleyite (TL)
Iodargyrite
Jarosite
Khinite
Linarite
Markcooperite (TL)
Mcalpineite
Mimetite
Moctezumite
Mottramite
Munakataite
Muscovite
Opal
var: Opal-AN

Ottoite (TL)
Parakhinite
Paratimroseite (TL)
Phosphohedyphane
Plumbotellurite
Plumbotsumite ?
Pyromorphite
Quartz
Silver
Telluroperite
Thorneite
Timroseite (TL)
'Turgite'
Vanadinite
Vauquelinite
Wulfenite
Xocomecatlite


48 entries listed. 45 valid minerals. 7 type localities (valid minerals).

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References

Wright, L.A., et al (1953), Mines and mineral resources of San Bernardino County, California: California Journal of Mines and Geology, California Division of Mines (Report 49): 49(1-2): tabulated list, No. 228, p. 71.

Goodwin, Joseph Grant (1957) Lead and zinc in California. California Journal of Mines and Geology, Division of Mines (Report 53): 53(3&4): 611.

Robert M. Housley (2005) Recent rare mineral finds in southern California and Nevada desert mines. Abstracts from the 2005 Desert Symposium. California State University, Desert Studies Consortium and LSA Associates, Inc.

Kampf, A. R., Mills, S. J., Housley, R. M., Marty, J. & Thorne, B. (2010) Lead-tellurium oxysalts from Otto Mountain near Baker, California: VI. Telluroperite, Pb3Te4+O4Cl2, the Te analogue of perite and nadorite. American Mineralogist, 95(10), 1569–1573.

Kampf, A. R., Mills, S. J., Housley, R. M., Marty, J. & Thorne, B. (2010) Lead-tellurium oxysalts from Otto Mountain near Baker, California: V. Timroseite, Pb2Cu2+5(Te6+O6)2(OH)2, and paratimroseite, Pb2Cu2+4(Te6+O6)2(H2O)2, new minerals with edge-sharing Cu-Te octahedral chains. American Mineralogist, 95(10), 1560–1568.

Kampf, A. R., Mills, S. J., Housley, R. M., Marty, J. & Thorne, B. (2010) Lead-tellurium oxysalts from Otto Mountain near Baker, California: IV. Markcooperite, Pb2(UO2)TeO6, the first natural uranyl tellurate. American Mineralogist, 95(10), 1554–1559.

Kampf, A. R., Housley, R. M., Mills, S. J., Marty, J. & Thorne, B. (2010) Lead-tellurium oxysalts from Otto Mountain near Baker, California: I. Ottoite, Pb2TeO5, a new mineral with chains of tellurate octahedra. American Mineralogist, 95(8-9), 1329–1336.

Marty, J., Kampf, A. R., Housley, R. M., Mills, S. J. & Weiß, S.. (2010). Seltene neue Tellurmineralien aus Kalifornien, Utah, Arizona und New Mexiko (USA). Lapis, 35 (12), 42-51; 66.

Kampf, A. R., Mills, S. J. & Housley, R. M. (2010) The crystal structure of munakataite, Pb2Cu2(Se4+O3)(SO4)(OH)4, from Otto Mountain, San Bernardino County, California, USA. Mineralogical Magazine, 74(6), 991–998.

Kampf, A.R., Mills, S.J., Housley, R.M., Marty, J. (2012) Agaite, IMA 2011-115. CNMNC Newsletter No. 13, June 2012, page 812; Mineralogical Magazine: 76: 807-817.

Kampf, A.R., Mills, S.J., Housley, R.M., Rossman, G.R., Marty, J. and Thorne, B. (2013) Eckhardite, IMA 2012-085. CNMNC Newsletter No. 16, August 2013, page 2696; Mineralogical Magazine: 77: 2695-2709.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10034001 & 10262126.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060710228.

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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.
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