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Fort Cady Deposit

Prospect in San Bernardino county in California, United States with commodities Boron-Borates, Gypsum-Anhydrite, Strontium, Halite, Sodium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10023265
MRDS ID I000064
Record type Site
Current site name Fort Cady Deposit
Related records 10116523

Geographic coordinates

Geographic coordinates: -116.41753, 34.76668 (WGS84)
Relative position SOUTHEAST OF BARSTOW IN MOJAVE DESERT.

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hector(quadrangle 1:24,000 scale)

Newberry Springs(quadrangle 1:100,000 scale)

San Bernardino(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Mojave(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California San Bernardino

Commodities

Commodity Importance
Boron-Borates Primary
Gypsum-Anhydrite Tertiary
Strontium Tertiary
Halite Tertiary
Sodium Tertiary

Materials information

Materials Type of material
Colemanite Ore
Anhydrite Gangue
Celestite Gangue
Gypsum Gangue
Halite Gangue
Trona Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Evaporite
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -116.41753, 34.76668
ListMap

Economic information

Ore body information

  • Thickness 36M
    Depth to top 410M

Economic information about the deposit and operations

Development status Prospect
Commodity type Non-metallic
Significant No
Discovery year 1964
Discoverer Congdon & Carrey

Mining district

District name Fort Irwin Area

Ownership information

  • Type Owner
    Owner Fort Cady Minerals (100% Corona Corp.-
    Last year 1990

Reserves and resources

  • Type In-situ
    Estimate year 1989
    Total resources 133700000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Boron-Borates B2O3 6.4 wt-pct Boron Major 1989

Comments on development

  • IN 1990 (MAY) CORONA WAS IN THE PROCESS OF TRANSFERRING OWNERSHIP OF FORT CADY MINERALS TO AVALON CORP., AN NYSE-LISTED OIL AND GAS COMPANY. AS OF MAY, 1990, 35% OF DETAILED CONSTRUCTION ENGINEERING WORK WAS COMPLETED AND MINING AND RECLAMATION PLANS WERE ABOUT TO BE SUBMITTED FOR PERMITTING. PREVIOUS OWNERS INCLUDE MOUNTAIN STATES MINERAL ENTERPRISES (TUCSON, ARIZONA, PURCHASED PROPERTY IN 1986) AND DUVAL CORP. (EARLY 1980'S). ; ECON.COM: PROJECT MANAGEMENT AWARDED TO KILBOURNE INTERNATIONAL. CONSTRUCTION OF AN 82,000 T/Y PLANT IS SCHEDULED FOR 1990.

Reference information

Bibliographic references

  • Deposit

    SPRAGUE, R.W., 1990, BORON, IN INDUSTRIAL MINERALS: METALS & MINERALS ANNUAL REVIEW - 1990, P. 114-115.

  • Deposit

    O'DRISCOLL, MIKE, 1990, MINERALS IN THE US SOUTH-WEST- BREAKING ROCKS IN THE HOT SUN: INDUSTRIAL MINERALS, NO. 272, P. 59.

  • Deposit

    RAPP, J.S., AND VREDENBURGH, L.M., 1992, INDUSTRIAL MINERAL RESOURCE POTENTIAL OF TERTIARY PLAYA DEPOSITS OF THE FORT IRWIN AREA, SAN BERNARDINO COUNTY, CALIFORNIA: SOCIETY FOR MINING, METALLURGY, AND EXPLORATION, INC. PREPRINT NUMBER 92-44, 9 P.

  • Deposit

    ROSKILL INFORMATION SERVICES LTD., 1993, THE ECONOMICS OF BORON 1993, 7TH ED.: LONDON, ROSKILL INFORMATION SERVICES LTD., 156 P.

  • Deposit

    INDUSTRIAL MINERALS, 1989, CORONA CONTROLS FORT CADY BORATE: NO. 260, P. 15, 17.

  • Deposit

    NORMAN, J.C., 1991, BORON: A REVIEW OF 1990 ACTIVITIES: MINING ENGINEERING, V. 43, NO. 7, P. 740-741.

  • Deposit

    MINING JOURNAL, 1989, FORT CADY BORIC ACID PROJECT: V. 312, NO. 8026, P. 505.

  • Deposit

    MINING ENGNEERING, 1989, PRODUCTION SCHEDULED IN 1989 AT FORT CADY BORON PROJECT: V. 41, NO. 1, P. 7.

  • Reserve-Resource

    SPRAGUE, 1990; O'DRISCOLL, 1990; INDUSTRIAL MINERALS, 1989; NORMAN, 1991.

General comments

Subject category Comment text
Deposit PLANS ARE TO SOLUTION MINE THE DEPOSIT. SITE COVERS 155 HA. THIS IS THE LARGEST KNOWN COLEMANITE DEPOSIT IN THE UNTIED STATES. IN THE EARLY 1980'S, DUVAL DEVELOPED, TESTED, AND PATENTED A UNIQUE INSITU SOLUTION MINING AND SOLAR EVAPORATION PROCESS FOR COLEMANITE WHERE IT IS CONVERTED INTO BORIC ACID AND CALCIUM CHLORIDE WHILE STILL UNDERGROUND. ; INFO.SRC : 1 PUB LIT
Deposit THE COLEMANITE OCCURS AS FINE GRAINED CRYSTALS IN BEDS, BANDS, AND DISSEMINATIONS WITHIN THE ANHYDRITE-RICH PART OF THE EVAPORITE SECTION. THE DEPOSIT AVERAGES 118 FT THICK AT AN AVERAGE DEPTH OF 1350 FT. THE DEPOSIT COVERS AN AREA OF 384 ACRES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1990 Orris, Greta J. U.S. Geological Survey
Updater 01-NOV-1993 Orris, Greta J. U.S. Geological Survey
Updater 03-NOV-1994 Orris, Greta J. U.S. Geological Survey
Updater 19-APR-1995 Orris, Greta J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.