Mine detail: Middle Fork Creek Borate Deposits

Previously called 'Jumbo ClaimMammoth ClaimCenter Creek ClaimBaldwin ClaimGib Claim'

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Location: Ventura County, California, United States, North America
Lat / long: 34.76971, -119.12565
dep_id: 10023822
mrds_id: I003015
Commodity type: nonmetallic
Major mineral: Boron-Borates
Trace mineral: Gypsum-Anhydrite
Operation type: Unknown
Production size: No production occurred
Development status: Occurrence
ore: Colemanite
gangue: Gypsum
Reporter: Orris, Greta J.
hrock_type: Shale
arock_type: Basalt
Structure: Extensive Folding And Faulting
disc_yr: 1898
References:
  • Deposit:: GALE, H.S., 1912, BORATE DEPOSITS IN VENTURA COUNTY, CALIFORNIA: USGS BULL 540, P. 434-456.
  • Deposit:: USBLM, 1959, MINERAL RECORD CARD.
  • Other Database:: CIMRI
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