Latitude: 38°52'23"N
Longitude: 122°26'30"W
A Mn occurrence located in sec. 20, T12N, R5W, MDM, about 9 miles ESE of Lower Lake, on land of undetermined ownership. NOTE: MRDS database stated accuracy for this locality is 500 meters.
Mineralization is associated with Lower Cretaceous marine rocks.
References
Logan, C.A. (1918), Chromium, in: Bradley, W.W. et al, Manganese and Chromium in California, California State Mining Bureau Bulletin 76: 37.
Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 93.
USGS MRDS database (2005), loc. file ID #10188384.
Minerals Availability System (MAS) file ID #0060330104.
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