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Rapp, John, California Division of Mines and Geology, personal communication to USGS MRDS staff (1991).

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Year1991
Original EntryRapp, John, California Division of Mines and Geology, personal communication to USGS MRDS staff (1991).
Mindat Ref. ID16251215Long-form Identifiermindat:1:5:16251215:5
GUID0
Full ReferenceRapp, John, California Division of Mines and Geology, personal communication to USGS MRDS staff (1991).
Plain TextRapp, John, California Division of Mines and Geology, personal communication to USGS MRDS staff (1991).

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Robinson Ranch Quarry, Witter Springs, Lake County, California, USA

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Rapp, John (1991), California Division of Mines and Geology, personal communication.
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John, D. (1979), personal communication to the USGS staff, Menlo Park, California.
 
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