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  3. Mineral Resource Data System (MRDS)

La Fortuna Prospect

Occurrence in Guanacaste, Costa Rica with commodity Sulfur
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Ownership information
  10. Reserves and resources
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10007944
MRDS ID CS00187
Record type Site
Current site name La Fortuna Prospect

Geographic coordinates

Geographic coordinates: -85.19578, 10.67883 (WGS84)

Site location context

Political divisions (FIPS codes)

Guanacaste(province)

Costa Rica(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Costa Rica Guanacaste

Comments on the location information

  • JUST NE OF LA FORTUNA. MAY BE THE SAME DEPOSIT AS MIRAVALLES (MRDS-REV REC. NO. 283).

Commodities

Commodity Importance
Sulfur Primary

Materials information

Materials Type of material
Sulfur Ore
Pyrite Gangue

Nearby scientific data

(1) -85.19578, 10.67883
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Ownership information

  • Type Operator
    Owner Thermocam Industries, Ltd.
  • Type Owner
    Owner Consolidated Negus Mines, Ltd.

Reserves and resources

  • Type In-situ
    Estimate year 1969
    Total resources 76000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Sulfur S 29.9 wt-pct Sulfur Major 1969

Comments on the reserve resource information

  • THIS IS INDICATED RESERVES. EARLIER (ASHLEY, 1967), CONSOLIDATED NEGUS MINES, LTD. HAD REPORTED INDICATED RESERVES OF 3,030,000 METRIC TONNES AVERAGING 29.92 % S, AND THAT "INFERRED ORE COULD ADD SUBSTANTIALLY TO THE RESERVES."

Comments on development

  • CONSOLIDATED NEGUS MINES, LTD. SUSPENDED WORK ON THE PROSPECT IN 1968 BECAUSE THE DEPOSIT CONTAINED PYRITE AT DEPTH. CONSOLIDATED NEGUS GRANTED AN OPTION TO THERMOCAM INDUSTRIES, LTD. IN 1969 TO WORK THE DEPOSIT. THERMOCAM BELIEVED IT COULD PROCESS THE ORE BY ELIMINATING THE PYRITE ECONOMICALLY.

Reference information

Bibliographic references

  • Deposit

    ASHLEY, B. E., 1967, THE MINERAL INDUSTRY OF COSTA RICA, IN MINERALS YEARBOOK 1967: U.S. BUREAU OF MINES YEARBOOK, V. 4, P. 900.

  • Deposit

    ASHLEY, B. E., 1968, THE MINERAL INDUSTRY OF COSTA RICA, IN MINERALS YEARBOOK 1968: U.S. BUREAU OF MINES YEARBOOK, V. 4, P. 847.

  • Deposit

    ASHLEY, B. E., 1969, THE MINERAL INDUSTRY OF COSTA RICA, IN MINERALS YEARBOOK 1969: U.S. BUREAU OF MINES YEARBOOK, V. 4, P. 833.

  • Deposit

    U.S. GEOLOGICAL SURVEY, DIRECCION GENERAL DE GEOLOGIA, MINAS E HIDROCARBUROS, UNIVERSIDAD DE COSTA RICA, 1987, MINERAL RESOURCE ASSESSMENT OF THE REPUBLIC OF COSTA RICA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATION SERIES MAP I-1865, 75 P.

General comments

Subject category Comment text
Deposit PYRITE AT DEPTH.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1986 Howe, Stephen S. U.S. Geological Survey

Beyond USGS

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

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