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Prrenjas Mine

Producer in Albania with commodities Nickel, Iron, Chromium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Production statistics
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10024534
MRDS ID ISM0257
Record type Site
Current site name Prrenjas Mine
Alternate or previous names Prenjas, Cervenaka

Geographic coordinates

Geographic coordinates: 20.55182, 41.06546 (WGS84)

Site location context

Political divisions (FIPS codes)

Albania(country)

Geographic areas

Country
Albania

Comments on the location information

  • 21 KM NW OF POGRADEC; 8 KM W OF LIN ON LAKE OHRID.
  • CENTROID IS CENTER OF ORE BODY

Commodities

Commodity Importance
Nickel Critical Primary
Iron Primary
Chromium Critical Primary

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Gosan
    Rock description Gosan

Nearby scientific data

(1) 20.55182, 41.06546
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Economic information

Geologic structures

Type of structure Regional
Structure description Eastern Ultramafic Belt

Comments on the geologic information

  • FAULTING; EO; TWO TYPES OF NI ORE HAVE BEEN DISTINGUISHED WITHIN THE PELITIC ORE, WHICH COVERS ALTERED PERIDOTITES. PISOLITIC O-RE IS FOUND ABOVE THE PELITIC ORE. PISOLITIC ORE CONTAINS (AV-ERAGE): 1.02% NI; 50.5% FE; 0.06% CO; 3.65% CR2O3; 5.1% SIO2;- 5.5% AL2O3; AND 5.1 TO 10% H2O. GOSSAN LIMESTONES (AGE: SAN-TONIAN-COMPANIAN (LCRET) COVER THE ORES IN SOME PLACES, BUT HA-VE BEEN ERODED IN MINED AREAS. DEPOSITS EXTEND IN NW-SE DIREC-TION WITH MINERALIZED LATERITES GENTLY DIPPING. WORKABLE DEPO-SITS ARE DISSECTED BY FAULTS.
  • ; ARCH; RB/SR; 2615 +/- 30 MA; PYTT + PNLD + PYRT + CLCP + MGNT + CRMT + MLRT; KAMBALDA SEQUENCE COMPRISES FROM BASE: FOOTWALL BASALT, ULTRAMAFIC SEQUENCE (OLIVINE PERIDOTITE AND PICRITE), HAN-GING-WALL BASALT, PLUS ASSOCIATED SEDIMENTS AND FELSIC INTRUSI-VES. SEQUENCE NOW DOMED AS A RESULT OF FOLDING/INTRUSION. 80-% OF ORE OCCURS IN FOOTWALL BASALT/ULTRAMAFIC CONTACT; REMAIND-ER OCCURS WITHIN ULTRAMAFIC SEQUENCE. ORE CONTAINS MASSIVE, M-ATRIX, AND DISSEMINATED SULPHIDES.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Year of first production 1966
Year of last production 1984

Mining district

District name Librazhdi-Pogradeci Region

Ownership information

  • Type Owner-Operator
    Owner State Owned

Production statistics

  • Year 1984
    Material ORE NI FE
    Accuracy Estimate
    Description Ap_Grade: ^0.6-0.9% Ni, Less Than 40% Fe
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Iron Iron 40wt-pct
    Major Ore Nickel Nickel 1wt-pct

Comments on the production information

  • PA1: ANNUAL PRODUCTION CAPACITY FOR ELBASA (STEEL OF THE PARTY) METALLURGICAL COMPLEX.
  • PA1-PA6: INCLUDES DATA FOR KAMBALDA-ST. IVES-TRAMWAYS DISTRICT. CAPACITY: 450000 MT/YR CONCENTRATE; 1625000 MT/-YR ORE; ABOUT 55000 MT/YR CONTAINED METAL PC1-PC3: INCLUDES DATA FOR KAMBALDA-ST. IVES-TRAMWAYS DISTRICT AND THE WMC SHARE (50%) OF PRODUCTION FROM CARNILY-A HILL MINE WHICH CAME ON STREAM IN 1980.

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.9 wt-pct Nickel Major 1984

Comments on the reserve resource information

  • REPORTER ESTIMATES THAT PRRENJAS DEPOSIT CONTAINS 4045% OF TOTAL WORKABLE RESOURCES IN THE LIBRAZHDI-POGRADECI REG-ION. RR2: TOTAL WORKABLE RESOURCES IN THE LIBRAZHDI-POGRADEC-I REGION INCLUDING GURI KUQ (40-45%), PRRENJAS (40-45%), AND B-USHTRICA AND OTHER SMALL DEPOSITS (ABOUT 15%); RR3: WORKABLE -NI-FE ORE RESOURCES IN THE LIBRAZHDI-POGRADECI REGION.
  • RR1: INCLUDES DATA FOR KAMBALDA-ST. IVES-TRAMWAYS DISTRICT.

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (). ELBASAN METALLURGICAL COMPLEX: NICKEL ORES ARE LEACHED TO SEPARATE NI; REMAINING IRON ORES FEED THE BLAST FURNACE-S. A UNIT IS UNDER CONSTRUCTION FOR THE PRODUCTION OF COBALT -SALTS AND ELECTROLYTIC NICKEL. IN 1975 NEW OPERATIONS WERE OP-ENED UP AT PRRENJAS MINE, WHICH AT PRESENT IS CONSIDERED TO BE- THE BIGGEST NI-FE MINE.
  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. ( X; WEAK NICKEL DEMAND AND WORLD-WIDE OVERCAPACITY). DEVELOPMENT(YES; ORE BLOCKING); EXPLORATION(YES; GEOLOGICAL MAPPING, DRILLING, SOIL GEOCHEMICAL SURVEYS); ASSESSMENT(RESERVES AT OPERATING MINES ARE DECLINING, BUT LARGE RESOURCES EXIST IN NEW ORE ZONES; LARGE POTENTIAL FOR EXPANSI-ON OF PRODUCTION, BUT IMPLEMENTATION DEPENDS ON IMPROVEMENT IN- WORLD DEMAND.);

Reference information

Bibliographic references

  • Deposit

    PUMO, F., 1973, DONNEES GENERALES SUR LES GITES MINERAUX DE L'ALBANIE ET CARACTERES PARTICULIERS DE SES IMPORTANTS- GISEMENTS DE NICKEL LATERITIQUE: PARIS, BUREAU DE RECHERCHES- GEOLOGIQUES ET MINIERES BULLETIN, SEC. 2, NO. 6, P. 451.

  • Deposit

    ZITZMANN, A., 1977, THE IRON ORE DEPOSITS OF ALBANIA, IN ZITZMANN, A., ED., THE IRON ORE DEPOSITS OF EUROPE AND AD-JACENT AREAS--EXPLANATORY NOTES TO THE INTERNATIONAL MAP OF TH-E ORE DEPOSITS OF EUROPE, 1/12,500,000, VOLUME I: HANNOVER (G-ERMANY, FEDERAL REPUBLIC), BUNDESANSTALT FUR GEOWISSENSCHAFTEN- UND ROHSTOFFE, P. 81-82.

  • Production

    PA1: REPORTER'S ESTIMATE

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 NO DETAILED AND CONSISTENT FIGURES ARE AVAILABLE ON PRODUCTION AND RESOURCES OF ALBANIAN NI-FE MINES. TOTAL ANNUA-L ORE PRODUCTION OF ALBANIA IS ESTIMATED TO BE SOME 1 MILLION -METRIC TONS AT PRESENT. TOTAL MINE CAPACITY IS AT LEAST 1.2 M-ILLION METRIC TONS OF ORE PER YEAR. TOTAL ALBANIAN WORKABLE N-I-FE RESOURCES MAY BE NEAR 70 MILLION METRIC TONS OF ORE.
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.). UNDERGROUND SMELTED/REFINED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1984 Krauss, Ulrich H. Bundesanstalt Fuer Geowissenschaften und Rohstoffee (Germany)

Beyond USGS

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

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