Mineralization is hosted in siliceous shale.
References:
Reed, Ralph Daniel (1928), A siliceous shale formation from southern California: Journal of Geology: 36: 342-361; …(abstract): Geol. Zentralbl., Band 38: 171 (1928), …39: 497 (1929); …Neues Jahrb., 1931, Referate 3: 571-572: 347.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 69, 200.
Pemberton, H. Earl (1983), Minerals of California: 403, 429.
Mineral List:3 entries listed. 2 valid minerals.
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