Latitude: 37°53'19"N
Longitude: 121°52'10"W
A Hg occurrence located in the NW¼NW¼ sec. 33, T1N, R1E, MDM, .
Mineralization is related to a breccia zone in rhyodacite cemented with calcite; crystalline cinnabar, metacinnabar, and pyrite associated with the calcite.
Workings include adits.
References
Pampeyan, Earl Haig (1963), Geology and mineral deposits of Mount Diablo, Contra Costa County, California: California Division Mines & Geology, Special Report 80, 31 pp.: 22, Pl. __. NOTE: Reference Plate No. truncated by MRDS database.
USGS MRDS database (2005), loc. file ID #10029554.
Mineral List
4 entries listed. 4 valid minerals.
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