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Clinobisvanite, eulytite, and namibite from the pala pegmatite district, San Diego Co., California, USA

  • Eugene E. Foord (a1)


The 100 Ma complex LCT-type composite pegmatite- aplite dykes, intruded into various units of the Southern California Batholith, are known to contain bismuth minerals. Jahns and Wright (1951) reported the following primary and secondary bismuth minerals from the quartz-rich cores of a number of dykes in the Pala district, San Diego Co., California: native bismuth, bismuthinite, bismite, bismutite, and beyerite.



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Foord, E.E., Spaulding, L.B. Jr., Mason, R.A. and Martin, R.F. (1989) Mineralogy and paragenesis of the Little Three mine pegmatites, Ramona district, San Diego County, California. Mineral Record, 20, 101—27
Foord, E.E., London, D., Kampf, A.R., Shigley, J.E. and Snee, L.W. (1991) Gem-bearing pegmatites of San Diego County, California. In: Geological Excursions in southern California and Mexico (Walawender, M.J. and Hanan, B.B., eds.) Guidebook for the 1991 Annual Meeting Geological Society of America, San Diego, CA., Oct. 21-24, 1991, 12846.
Frondel, C. (1943) New data on agricolite, bismoclite, koechlinite, and the bismuth arsenates. Amer. Mineral, 28, 536—40.
Jahns, R.H. (1979) Gem-bearing pegmatites in San Diego County, California: The Stewart mine, Pala district and the Himalaya mine, Mesa Grande district. In Mesozoic Crystalline rocks. (P.L. Abbott and V.R. Todd, eds.) San Diego, California, San Diego State University, Dept, of Geological Sciences, pp. 338.
Jahns, R.H. and Wright, L.A. (1951) Gem- and lithiumbearing pegmatites of the Pala district, San Diego County, California. Calif. Div. of Mines Spec. Report 7A, 72 pp.
Mrazek, Z., Veselovsky, F., Hlousek, J., Moravcova, H. and Ondrus, P. (1994) Redefinition of namibite, Cu(Bi0)2V040H. Neues Jahrb. Mineral., Mh. 481-8.
Shigley, J.E., Kampf, A.R., Foord, E.E. and London, D. (1986) Fieldtrip guidebook to gem pegmatites of southern California14th General Meeting of the International Mineralogical Association, July, 1986, Stanford University, Stanford, California. 39 pp.


Clinobisvanite, eulytite, and namibite from the pala pegmatite district, San Diego Co., California, USA

  • Eugene E. Foord (a1)


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