1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Millionaire

Past Producer in Guyana with commodities Gold, Silver
Map
XML
JSON
KML
B
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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10105145
MRDS ID TC32207
Record type Site
Current site name Millionaire
Alternate or previous names Baramita Goldfield, Cipriani Shaft

Geographic coordinates

Geographic coordinates: -60.44685, 7.32759 (WGS84)

Site location context

Political divisions (FIPS codes)

Guyana(country)

South America(continent)

Land(continent)

Geographic areas

Country
Guyana

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Comments on the commodity information

  • GOLD IS 720 FINE

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Analytical data

Result ASSAYS OF 2.3 G/MT AU OVER 51 M TRUE WIDTH IN SAPROLITE (1995) AND 11.46 G/MT AU OVER 40M LENGTH OF QUARTZ TAILINGS.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)

Nearby scientific data

(1) -60.44685, 7.32759
ListMap

Economic information

Ore body information

  • Thickness 0.46M
  • Thickness 0.61M

Comments on the geologic information

  • APPEARS TO BE ON THE SAME OR SIMILAR STRUCTURES AS RESERVE, CROCODILE, OLD WORLD, MARCUS IN AREA 3 1/2 X 1/2 MILES VEIN (1) ORIGINAL DISCOVERY; VEIN (2) DISCOVERED IN SECOND SHAFT

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1907
Discoverer Jose Leon

Mining district

District name Northwest District Division

Ownership information

  • Type Operator
    Owner At Various Times But In This Sequence: J. Murray; Cipriani; Obermuller; Leung And Obermuller. Golde

Production statistics

  • Year 1910
    Period 1910'S
    Material AU
    Description Cp_Grade: ^Up To 30 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 949g/mt
  • Year 1930
    Period 1930'S
    Material AU (1)
    Description Cp_Grade: ^4.9 To3.46 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 132g/mt

Comments on the production information

  • 500 OZ RECOVERED IN 10 WEEKS; AU (1) CAME FROM DUMP MATERIAL; VEIN 2 RAN 4.2 OZ/TON

Comments on the reserve resource information

  • WASTE
  • INCLUDES OLD WORLD AND MILLIONAIRE AND IS BASED ON PITTING AND AUGERING TO 30 M. 14 SURFACE GRAB SAMPLES AVERAGE 70.26 G/MT.

Comments on the workings information

  • SHAFTS AND ADDITS

Reference information

Bibliographic references

  • Analytical Data

    ANON. (1995).

  • Deposit

    MACDONALD, J.R., 1968, A GUIDE TO MINERAL EXPLORATION IN GUYANA: GEOLOGICAL SURVEY OF GUYANA, BULLETIN 38, P. 59.

  • Deposit

    BARRON, C.N., ED., 1961, BARAMITA SE & SW: GEOLOGICAL SURVEY OF BRITISH GUIANA; SCALE 1:200000.

  • Deposit

    BRACEWELL, S., 1938, GEOLOGICAL RECONNAISSANCE SURVEY OF PART OF THE NORTHWEST DISTRICT WITH AN APPENDIX CONTAINING A REPORT ON THE GEOLOGY OF THE ARUKA DISTRICT BY W.T. LORD, 1929: GEOLOGICAL SURVEY OF BRITISH GUIANA, BULLETIN NO. 7.

  • Deposit

    ANON., 1994, CANARC ADDS TO GUYANA HOLDINGS: NORTHERN MINER, V. 80, NO. 35, P. 16.

  • Deposit

    ANON., 1995, ECHO BAY, CANARC JOIN FORCES TO EXPLORE GUYANESE PROJECT: THE NORTHERN MINER, V. 81, NO. 10, P. 20.

  • Other Database

    CIMRI

  • Production

    BRACEWELL (1938)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1992 Page, Norman J. U.S. Geological Survey
Updater 10-FEB-1995 Page, Norman J. U.S. Geological Survey
Updater 01-JUN-1995 Page, Norman 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