California · Ventura County
Occurrence

Middle Fork Creek Borate Deposits

Ventura County, California, United States
Boron-BoratesGypsum-Anhydrite
⌖ Show on mapUSGS source ↗
Commodities
PrimaryBoron-Borates
TertiaryGypsum-Anhydrite
Commodity typeN
Deposit
Deposit sizeN
Materials
Ore mineralsColemanite
GangueGypsum
Geology
Host rockShale
Associated rockBasalt
StructureExtensive Folding And Faulting
Economic & production
Development statusOccurrence
Discovery year1898
Identification
Deposit ID10023822
MRDS IDI003015
Alternate namesJumbo Claim, Mammoth Claim, Center Creek Claim, Baldwin Claim, Gib Claim
RegionNA
Data scoreC
Coordinates34.76971, -119.12565
References
GALE, H.S., 1912, BORATE DEPOSITS IN VENTURA COUNTY, CALIFORNIA: USGS BULL 540, P. 434-456.USBLM, 1959, MINERAL RECORD CARD.CIMRI