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  3. Mineral Resource Data System (MRDS)

Fern Magnetite Prospect

Occurrence in Gila county in Arizona, United States with commodity Iron
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10027106
MRDS ID M002102
Record type Site
Current site name Fern Magnetite Prospect
Related records 10233848

Geographic coordinates

Geographic coordinates: -110.96626, 33.46508 (WGS84)
Elevation 1219
Relative position ABOUT 18 MI EAST OF MIAMI.

Site location context

Political divisions (FIPS codes)

Gila(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Inspiration(quadrangle 1:24,000 scale)

Globe(quadrangle 1:100,000 scale)

Mesa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Salt(hydrologic unit)

Salt(hydrologic accounting unit)

Salt(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Tonto 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 Arizona Gila

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 001N 014E 06 Arizona

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Magnetite Ore

Analytical data

Result CHARACTER SAMPLE CONTAINED 66.7% FE, 0.1% TIO2
Result 0.9% MN, 0.036% P, 0.16% S, TRACE OF ZN, 0.07% MGO, 2.18% SIO2

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Mescal Limestone
    Rock description Mescal Lst

Nearby scientific data

(1) -110.96626, 33.46508
ListMap

Economic information

Ore body information

  • General form IRREGULAR
    Dip 25 N
    Thickness 15.24M
    Length 304.8M
    Width 152.4M

Comments on the geologic information

  • .

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Miami-Inspiration District

Land status

Ownership category National Forest
Area name Tonto National Forest

Reference information

Bibliographic references

  • Deposit

    HARRER, C.N., 1964, RECONNAISSANCE OF IRON RESOURCES IN ARIZONA: USBM INFORMATION CIRCULAR 8236, P. 342

General comments

Subject category Comment text
Deposit THE MAGNETITE OCCURS AS NEARLY PURE MASSES, AS BANDS PARTIALLY REPLACING MESCAL LIMESTONE, AND AS DISSEMINATIONS, ASSOCIATED WITH NEARBY DIABASE INTRUSIVES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1979 Hall, R. K. (Creasey, S. C.) 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

Authoritative Arizona resources

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