Alma Mine (Alma Pyrite Mine), Leona Heights deposit, Leona Heights, Oakland, Oakland Hills, Diablo Range, Alameda Co., California, USA

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A pyrite mine located in sec. 34, T1S, R3W, MDM.

References

Schaller, Waldemar Theodore (1903a), Minerals from Leona Heights, Alameda County, California: University of California, Department of Geological Sciences Bulletin: 3: 191-217.

Schaller, Waldemar Theodore (1905b), Mineralogical notes: USGS Bulletin 262: 121-144.

Clark, Clifton W. (1917), The geology and ore deposits of the Leona rhyolite, California: University of California, Department of Geological Sciences Bulletin: 10: 374.

Larsen, Esper Signius (1921), The microscopic determination of nonopaque minerals: USGS Bulletin 679, 294 pp.: 61.

Davis, Fenelon Francis (1950), Mines and mineral resources of Alameda County, California: California Journal of Mines and Geology: 46: 296, 306.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 490, 502, 504, 626.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 62, 108, 127, 131, 156, 157, 236, 257, 290, 301.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 48, 71, 87, 263, 266, 270, 274, 296, 298.

Mineral List

Alunogen Boothite (TL) Chalcanthite Chalcopyrite

Copiapite Copper Epsomite Halotrichite

Hematite Hexahydrite Kröhnkite Limonite

Melanterite var: Cuprian Melanterite Pyrite Römerite

16 entries listed. 14 valid minerals. 1 type locality (valid mineral).