Maillard Ranch (1), San Geronimo, Marin Co., California, USA
A Cr occurrence located 2.7 km (8,900 feet) ESE of San Geronimo, ½ mile S of Woodacre and 8 miles NW of San Rafael.
Mineralization is Chromite float; chromite in situ not found.
ReferencesWatts, Wm. L. (1893), Alameda, Colusa, Del Norte, Fresno, Glenn, Humboldt, Marin, Mendocino, Merced, Placer, Sacramento, Santa Clara, San Joaquin, Sonoma, Stanislaus, Sutter, Kern, Lake, Contra Costa, Tehama, Tulare Counties California Mining Bureau. Report 11: 253.
California Journal of Mines and Geology (1955): 51(3) (July): 277.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 140.
1 entry listed. 1 valid mineral.
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