Ninety-One Mine

Past Producer in Pinal county in Arizona, United States with commodities Molybdenum, Copper, Lead, Vanadium
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10026811
MRDS ID M000385
Record type Site
Current site name Ninety-One Mine
Related records 10234750

Geographic coordinates

Geographic coordinates: -110.90847, 33.13842 (WGS84)
Elevation 1157
Relative position 1/2 MI SW OF TROY SITE, 1/4 MI NE OF BUCKEYE MINE

Site location context

Political divisions (FIPS codes)

Pinal(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hot Tamale Peak(quadrangle 1:24,000 scale)

Globe(quadrangle 1:100,000 scale)

Mesa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Gila(hydrologic unit)

Middle Gila(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management AZ)

Bureau of Land Management AZ BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Arizona Pinal

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 003S 014E 27 SW4 Arizona

Comments on the location information

  • INFO FROM LAND.ST :1979

Commodities

Commodity Importance
Molybdenum Primary
Copper Tertiary
Lead Tertiary
Vanadium Critical Tertiary

Materials information

Materials Type of material
Wulfenite Ore

Analytical data

Result 3 SAMPLES BY AN RFC ENGINEER RAN 0.8, 0.16, AND 1.16% MO

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Mescal Limestone & Dripping Spring Quartzite Of Apache Group
    Rock description Mescal Limestone & Dripping Spring Quartzite Of Apache Group
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -110.90847, 33.13842

Economic information

Geologic structures

Type of structure Local
Structure description N80e Steeply Dipping Vein

Ore body information

  • General form LENTICULAR BUNCHES

Controls for ore emplacement

  • Along Bedding Planes In Limestone, As Inclusions In Diabase

Comments on the geologic information

  • WULFENITE IS AN OXIDATION PRODUCT OCCURING IN JOINTS IN QUARTZITE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Dripping Springs District

Land status

Ownership category Private

Workings at the site

  • Type of workings Underground
    Overall depth 45.72M

Comments on the workings information

  • SHAFT WAS APPARENTLY 150 FT DEEP WITH 3 LEVELS

Reference information

Bibliographic references

  • Deposit

    RANSOME, 1923, USGS FOLIO 217

  • Deposit

    ABM FILE DATA

  • Deposit

    CORNWALL ET AL, 1971, USGS MAP GQ-1201

General comments

Subject category Comment text
Deposit THIS RECORD WAS TAKEN FROM RECORD M000385 OF JAN WILT IN MOLYBDUMU M FILE, CONTACT PERSON T.G. THEODORE, USGS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1983 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

Authoritative Arizona resources

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