Boraxo Mine (Kern Borate Mine; Boraxo deposit; Boraxo No. 1 and No. 2; Clara claim; Thompson Mine; Tenneco Mine), Ryan area, Death Valley National Park, Inyo Co., California, USA

• Display
  • Standard
  • Detailed
  • By Strunz Category
  • By Dana Category
• Photos
  • Mineral Photos (19)
  • Site Photos (3)
  • Add Photo
• Maps
  • Map Pages
  • Nearest Localities
• Search
  • Mineral Search
  • Search Google

A former borate mine located in the NE¼NE¼ sec. 36, T26N, R2E, SBM, 2 miles NW of Ryan.

Mineralization is a lacustrine borate deposit (Deposit model: 260: Lacustrine borates), hosted in rocks of the Furnace Creek Formation (limestone, clay, mud, mudstone, sandstone, shale).

Local structures include a W-trending E-plunging anticline, the Death Valley graben, Pit fault and minor folding.

Production data are found in: Evans and Others (1976).

Reserve-Resource data are found in: An estimate by G. Orris from published data (1990).

References

Erd, R.C., V. Morgan & J.R. Clark (1961), Tunellite, a new hydrous strontium borate from the Kramer borate district, California: USGS PP 424-C, article No. 255: C294-C297.

Anonymous (1963), California Division of Mines and Geology, Mineral Information Service: California Mineral Production 1962: 16(1): 9.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 154, 295, 377.

McAllister, James Franklin (1970) Geology of the Furnace Creek borate area, Death Valley, Inyo County, California. California Division of Mines and Geology Map Sheet 14, 9 pp.: 8.

Minette, J.W. and Wilber, D.P. (1973) Hydroboracite from the Thompson mine, Deathe Valley. Mineralogical Record: 4: 21-23.

Nevada Bureau of Mines and Geology Report 26 (1976), "Guidebook: Las Vegas to Death Valley and Return," Mackay School of Mines, University of Nevada - Reno, 1976.

Evans, James R., G.C. Taylor, and J.S. Rapp (1976) Mines and mineral deposits in Death Valley National Monument. California Division Mines and Geology Special Report 125: 1-61.

Guidebook: Las Vegas to Death Valley and Return (1976), Nevada Bureau of Mines and Geology Report 26, Mackay School of Mines, University of Nevada - Reno.

Countryman, R.I. (1977), Hydroboracite from the Amargosa Desert, eastern California: Mineralogical Record: 8: 503-504.

Pemberton, H. Earl (1978) Hydroboracite from the Furnace Creek formation. Mineralogical Record: 9: 379-381.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 238 (map 7-1), 240, 246, 255, 256, 288.

Mineral List

Calcite Celestine 'Clay'

Colemanite Hydroboracite Priceite

Probertite Tunellite Ulexite

9 entries listed. 8 valid minerals.