GoweriteHard Scramble claim, Ryan, Black Mts, Furnace Creek District, Death Valley National Park, Inyo Co., California, USA
Photo: Elmar Lackner 2009 A borate occurrence (old US Borax & Chemical Co. claim) located in the SE¼SE¼ sec. 36, T26N, R2E, SBM, 10 km SE of the Meridian claim and 3 km N72W of Ryan, in the NE foothills of the Black Mountains.
Mineralization is a borate and gypsum deposit of Halocene borates in a surficial sponge containing much gypsum and ulexite, formed by the weathering of proximate colemanite and priceite veins in Late Tertiary rocks (basalt).
References
Allen, Robert D. & Henry C. Kramer (1957), Ginorite and sassolite from Death Valley, California, American Mineralogist: 42: 56-61, 198.
Erd, R.C., J.F. McAllister & H. Almond (1959), Gowerite, a new hydrous calcium borate from Death Valley, California: American Mineralogist: 44: 911-919.
Erd, R.C., J.F. McAllister & A.C. Vlisidis (1961), Nobleite, another new hydrous calcium borate from the Death Valley region, California: American Mineralogist: 46: 561.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 205-206.
Erd, R.C., J.F. McAllister, and A.C. Vlisidis (1970) Wardsmithite 5CaO • MgO •12B2O3 •30H2O, a new borate mineral from the Death Valley region, California. American Mineralogist: 55: 349-357.
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, 9.
Erd, R.C., J.F. McAllister, and G.D. Eberlein (1979) New data on hungchaoite, the second world occurrence, Death Valley region, California. American Mineralogist: 64: 369-375.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 239-240, 241, 254, 259, 280.
Mineral List
22 entries listed. 22 valid minerals. 2 type localities (valid minerals).
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