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St. Johns

Past Producer in Apache county in Arizona, United States with commodities Silica, Semiprecious Gemstone
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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. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10023615
MRDS ID I000803
Record type Site
Current site name St. Johns

Geographic coordinates

Geographic coordinates: -109.30872, 34.50396 (WGS84)
Location accuracy 10000(meters)
Relative position Estimated Location, May Be Several Minutes Incorrect.

Site location context

Political divisions (FIPS codes)

Apache(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Saint Johns North(quadrangle 1:24,000 scale)

Saint Johns(quadrangle 1:100,000 scale)

Saint Johns(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Little Colorado(hydrologic unit)

Little Colorado(hydrologic accounting unit)

Little Colorado(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Arizona Apache

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 013N 029E 30 Arizona

Comments on the location information

  • IN VICINITY OF ST. JOHNS. LAT-LONG TAKEN FROM PROSPECT SHOWN IN SECTION 30.

Commodities

Commodity Importance
Silica Primary
Semiprecious Gemstone Primary

Materials information

Materials Type of material
Petrified Wood Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock
    Rock unit name Chinle Formation
    Rock description Chinle Formation
    Stratigraphic age (youngest) Holocene
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel

Nearby scientific data

(1) Chinle Formation
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Significant No

Reference information

Bibliographic references

  • Deposit

    PEIRCE, H.W., 1969, GEM MATERIALS, IN USGS, ABM, AND USBR, MINERAL AND WATER RESOURCES OF ARIZONA: ABM BULLETIN 180, USGS BULLETIN 871, P. 359

General comments

Subject category Comment text
Deposit PETRIFIED WOOD AND OTHER FINELY CRYSTALLINE VARIETIES OF QUARTZ OCCUR IN GRAVELS THAT CAP THE HIGHER SURFACES IN THIS AREA. THE SILICA MATERIALS WERE PROBABLY DERIVED FROM THE CHINLE FM.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-92 Orris, Greta 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

Authoritative Arizona resources

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