Mine detail: Middle Fork Creek Borate Deposits

Previously called 'Jumbo ClaimMammoth ClaimCenter Creek ClaimBaldwin ClaimGib Claim'

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Location

Lat / long: 34.76971, -119.12565

Resource(N)

Primary: Boron-Borates
Tertiary: Gypsum-Anhydrite
Ore: Colemanite
Gangue: Gypsum
Discovery year: 1898

Production

Operation type: Unknown
Production size: None
Development status: Occurrence

Geology

Host type:Shale
Associated type:Basalt
Structure:Extensive Folding And Faulting

References

MRDSI003015
DEP10023822
Reference{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}
ReporterOrris, Greta J.