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Apex Mine (Rundberg Mine; Early Day Mine), Reese River District, Lander Co., Nevada, USA

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Latitude & Longitude (WGS84): 39° 27' 30'' North , 117° 5' 56'' West
Latitude & Longitude (decimal): 39.4583333333, -117.098888889

A former U occurrence/mine located in sec. 1, T18N, R43E, MDM.

Mineral List

34 valid minerals. 1 (TL) - type locality of valid minerals.

This page contains all mineral locality references listed on 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 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.


Garside, NBMG Bull 81 (1973).

McCollam, Bridget E. (2002), Zippeites: Chemical Characteriation and Powder X-Ray Diffraction Studies of Synthetic and NAtural Samples, MS thesis, Notre Dame University (unpublished).

Jensen, M. and J. Herrmann (2012) Uranium mineralization at the Apex Mine, Lander County, Nevada. Rocks and Minerals: 87: 270-276.

Kampf, A.R., Mills, S.J., Nash, B.P., Jensen, M. and Nikischer, T. (2015) Apexite, IMA 2015-002. CNMNC Newsletter No. 25, June 2015, page 531; Mineralogical Magazine: 79: 529-535.

NBMG Bull 80 Geology and Mineral Deposits of Lander County, Nevada.

NBMG Special Publication 31, Minerals of Nevada.

Kampf, A.R., Mills, S.J., Nash, B.P., Jensen, M., Nikischer, T. (2015): Apexite, NaMg(PO4)·9H2O, a new struvite-type phase with a heteropolyhedral cluster. American Mineralogist, 100, 2695–2701

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