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Villa Grove Turquoise Mine

Past Producer in Saguache county in Colorado, United States with commodities Gemstone, Copper, Lead, Zinc, Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10101751
MRDS ID D008245
Record type Site
Current site name Villa Grove Turquoise Mine
Alternate or previous names Villa Grove Mine, Hall Turquoise Mine, Turquoise Lode and Turquoise Blue Lode Claims
Related records 10191344, 10264838, 10289049

Geographic coordinates

Geographic coordinates: -106.05365, 38.29918 (WGS84)
Elevation 2896
Relative position 15 MILES N18E FROM SAGUACHE

Site location context

Political divisions (FIPS codes)

Saguache(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Whale Hill(quadrangle 1:24,000 scale)

Saguache(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Luis(hydrologic unit)

Rio Grande Headwaters(hydrologic accounting unit)

Rio Grande Headwaters(hydrologic subregion)

Rio Grande(hydrologic region)

Federal lands

Rio Grande National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Saguache

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 047N 008E 26 SW OF NE OF W Colorado

Comments on the location information

  • S-T-R, LAT-LONG, AND ELEV. TAKEN FROM BURBANK'S (1932) PLATE 1(SCALE 1:12000). MINE OR CLAIM LIES ON PETERSON CREEK 6.5 MILES NW OF VILLA GROVE ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Gemstone Primary
Copper Tertiary
Lead Tertiary
Zinc Critical Tertiary
Molybdenum Tertiary

Materials information

Materials Type of material
Turquoise Ore
Hematite Gangue
Magnetite Gangue
Pyrite Gangue

Alteration

  • (Local) Argillization

Analytical data

Result GABBRO CONTAINS 70 TO 85% PLAGIOCLASE, 3 TO 10% PYROXENE, TR TO 5% BIOTITE, 2 TO 5% MAGNETITE, 5 TO 7% QUARTZ, TR APATITE. FOLLOWING METAL ANALYSES WERE RUN ON ONE SAMPLE OF UNALTERED GABBRO, SLIGHTLY ALTERED ROCK FROM NE EDGE OF ALTERATION ZONE, HIGHLY ARGILLIZED ROCK IN ALTERATION ZONE, SLIGHTLY ALTERED ROCK FROM EAST EDGE OF ALTERATION ZONE, HIGHLY SERICITIZED ROCK 53 FT FROM SE EDGE OF ALTERATION ZONE, AND FRESH GABBRO FROM WESTERNMOST OCCURRENCE (SW/4 SEC. 27). EACH SET OF VALUES IS CONTENT OF CU, MO, AND FRESH GABBRO FROM WESTERNMOST OCCURRENCE (SW/4 SEC. 27). EACH SET OF VALUES IS CONTENT OF CU, MO, PB, AND ZN (ALL IN PPM): 30, 4, 20, 55
Result 70, 4, 15, 45
Result 240, 6, 25, 50
Result 65, 4, 25, 140
Result 75, 4, 20, 95
Result 75, 4, 20, 709 IN ADDITION, ANALYSIS 4 CONTAINED L.T. 0.2 PPM AG.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Rock unit name Turquesa Gabbro
    Rock description Turquesa Gabbro
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Rock unit name Turquesa Gabbro
    Rock description Turquesa Gabbro

Nearby scientific data

(1) -106.05365, 38.29918
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Sawatch Range, San Juan Volcanic Field, Rio Grande Rift
Type of structure Local
Structure description Bonanza Caldera

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Significant No
Year of last production 1975

Mining district

District name Bonanza (Kerber Creek)

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Musick And Musick
    First year 1975

Comments on the production information

  • PARTIAL PRODUCTUION RECORD, PRODUCTION UNKNOWN FOR YEARS BEFORE 1952 AND FOR 1953, 1956, 1961, 1962, 1965 - 69, 1973, NO PRODUCTION REPORTED FOR 1971 AND 1972 AND SINCE 1975.

Comments on the workings information

  • LARGE OPEN CUT AND UNDERGROUND DRIFTS

Reference information

Bibliographic references

  • Deposit

    PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT, SAGUACHE COUNTY, COLORADO: USGS PROF. PAPER 169, 166 P.

  • Deposit

    MAYHEW, J.D., 1969, GEOLOGY OF THE EASTERN PART OF THE BONANZA VOLCANIC FIELD, SAGUACHE COUNTY, COLORADO: COLORADO SCHOOL FO MINES M.S. THESIS T-1226.

  • Production

    COLO DIV MINES ANN, OPERATOR REPTS

General comments

Subject category Comment text
Deposit TURQUOISE OCCURS AS VEINS AND NODULES IN LARGE OVAL ZONE OF ARGILLIZATION IN TURQUESA GABBRO. THESE FISSURE FILLINGS LIE ABOVE WATER TABLE, BUT BELOW IT THE AMOUNT OF TURQUOISE DECREASES SHARPLY AND DISSEMINATED PYRITE AND CU SULFIDES APPEAR. THE CU IN THE TURQUOISE PROBABLY RESULTED FROM LEACHING OF THE DISSEMINATED SULFIDES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1981 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Colorado resources

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