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  3. Mineral Resource Data System (MRDS)

Lac St. Jean

Prospect in Quebec, Canada with commodity Wollastonite
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10096956
MRDS ID I001024
Record type Site
Current site name Lac St. Jean
Alternate or previous names St. Onge

Geographic coordinates

Geographic coordinates: -72.08277, 48.5833 (WGS84)
Location accuracy 1000(meters)
Relative position NEAR LAC ST. JEAN., Est Location, Unknown Precision But Could Be As Much As A Degree Incorrect.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Quebec

Comments on the location information

  • COORDINATES OF ALDAN. EXACT LOCATION OF DEPOSIT UNKNOWN. A TOWN NAMED UST'SELIGDAR IS NORTH OF ALDAN ADJACENT TO ALDAN RIVER. RUSSIAN PUBLISHERS DESCRIBE SELIGDAR, WEST OR SOUTHWEST OF ALDAN TOWN. OTHER APATITE OCURRENCES KNOWN IN THE ALDAN AREA: NIRYANDZHA, CHUGINSK, INAGLINSK-MASSIF, DZHAGYLAKHSKOE, ARBARASTAKHSK (R2 3770 MILLION TONNES GRADING 4-10 % P2O5; ORES CONTAINING AT LEAST 10 % P2O5 ARE ESTIMATED AT 350 MILLION TONNES), AND GORNOOZERSK (290 MILLION TONNES 6-7 % P2O5)

Commodities

Commodity Importance
Wollastonite Primary

Comments on the commodity information

  • PHOSPHATE

Materials information

Materials Type of material
Wollastonite Ore
Calcite Gangue
Diopside Gangue
Plagioclase Gangue
Pyroxene Gangue

Analytical data

Result WOLLASTONITE ASPECT RATIO IS 15:1. GRAB SAMPLES OF SKARN MATERIAL RUN 45-54% WOLLASTONITE.

Mineral occurrence model information

Model code 65
USGS model code 18g
Deposit model name Skarn wollastonite

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)

Nearby scientific data

(1) -72.08277, 48.5833
ListMap

Economic information

Comments on the geologic information

  • ; PHLOGOPITE, MARTITE, APATITE, CARBONATES; DEPOSIT IS CLASSIFIED AS "ULTRA METAMORPHIC" BY FAYZULLIN. INTRUSIVE BODY DISPLAYS AN ELLIPTIC OUTCROP (2.4 BY 1 KM). AGE DETERMINATIONS REVEALED THAT APATITE MINERALIZATIONS ARE OF EPROT AGE

Economic information about the deposit and operations

Development status Prospect
Commodity type Non-metallic
Significant No

Ownership information

  • Type Owner
    Owner Orleans Resources Inc.
    Home office Montreal

Comments on the production information

  • A MINE WAS DUE TO COME ON STREAM IN 1979 WITH A CAPACITY OF 60 MILLION TPY ORE

Reserves and resources

  • Type In-situ
    Estimate year 1994
    Total resources 256000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Wollastonite Wol 37 wt-pct Wollastonite Major 1994

Comments on the reserve resource information

  • PROGNOSTIC RESERVES TO A DEPTH OF 250-300 M. COMPILERS OPINION: R2; WORKABILITY DEPENDS ON INFRASTRUCTURE

Comments on the workings information

  • PROPERTY IS COMPOSED OF 298 CLAIMS.

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. ().
  • PREVIOUSLY OWNED BY TRI-ALPHA INVESTMENTS OF VANCOUVER, B.C. ; ECON.COM: MINERAL SEPARATION IS SAID TO BE SIMPLE FOR THIS DEPOSIT. CAPITAL COST TO PUT THE DEPOSIT INTO PRODUCTION IS $29.9 MILLION, INCLUDING WORKING CAPITAL AND START UP COSTS (ESTIMATED BY KILBORN TECSULT, 1994).

Reference information

Bibliographic references

  • Deposit

    INDUSTRIAL MINERALS, 1991, WORLD OF MINERALS: NO. 282, P. 9.

  • Deposit

    NORTHERN MINER, 1990, TRI-ALPHA PROBES WOLLASTONITE BET: V. 76, NO. 38, P. 19.

  • Deposit

    INDUSTRIAL MINERALS, 1995, ORLEANS WOLLASTONITE STUDY POSITIVE, IN WORLD OF MINERALS: NO. 328, P. 9.

General comments

Subject category Comment text
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). (SURFACE)
Deposit BANDED WOLLASTONITE-DIOPSIDE SKARN WITH LITTLE OVERBURDEN.
Deposit Discovery Year: 1954/1974

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-91 Orris, Greta J. U.S. Geological Survey
Updater 01-FEB-95 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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