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  3. Mineral Resource Data System (MRDS)

Llano

Occurrence in Llano county in Texas, United States with commodities Platinum, Bismuth
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10038132
MRDS ID M045418
Record type Site
Current site name Llano
Related records 10178765

Geographic coordinates

Geographic coordinates: -98.67644, 30.75327 (WGS84)
Elevation 305
Relative position NEAR LLANO, TEXAS

Site location context

Political divisions (FIPS codes)

Llano(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Llano North(quadrangle 1:24,000 scale)

Llano(quadrangle 1:100,000 scale)

Llano(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Llano(hydrologic unit)

Middle Colorado-Llano(hydrologic accounting unit)

Lower Colorado-San Bernard Coastal(hydrologic subregion)

Texas-Gulf(hydrologic region)

Geographic areas

Country State County
United States Texas Llano

Comments on the location information

  • UNSURVEYED. NO LOCATION GIVEN IN REFERENCE. PRESUMED NEAR LLANO DUE TO NAME. LOCATION GIVEN IS SPILLWAY ON LLANO RIVER AT LLANO, ALTHOUGH OCCURRENCE MAY NOT BE A PLACER OCCURRENCE

Commodities

Commodity Importance
Platinum Critical Primary
Bismuth Critical Primary

Comments on the commodity information

  • PLATINUM SAID TO BE IN ARSENIC-BEARING PYRITE. BI REPORTEDLY DECREASES WITH DEPTH OVER 20 M WHILE PT REPORTEDLY DOUBLES OVER SAME INTERVAL. QUIRING DOES NOT CITE SOURCE OF THIS PGE INFORMATION

Materials information

Materials Type of material
Pyrite Ore

Analytical data

Result 2% BI, 4.66-6.84 PPM PT (IN THE PYRITE?). 1.929 OZ/TON (66 PPM) PT, CONCENTRATION NOT KNOWN

Nearby scientific data

(1) -98.67644, 30.75327
ListMap

Economic information

Ore body information

  • General form UNKNOWN

Comments on the geologic information

  • NO GEOLOGIC INFORMATION GIVEN OTHER THAN PRESENCE OF PYRITE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Operator
    Owner Llano Gold And Rare Metals Mining Co.

Reference information

Bibliographic references

  • Deposit

    QUIRING, HEINRICH, 1962, PLATINMETALLE IN DIE METALLISCHEN ROHSTOFFE 16 BAND: STUTTGART, FERDINAND ENKE VERLAG, P. 251

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit NATURE OF DEPOSIT IS UNKNOWN. WHAT LITTLE DESCRIPTION IS AVAILABLE SEEMS TO SUGGEST A LODE DEPOSIT AS PYRITE IS RARELY FOUND IN PLACER ACCUMULATIONS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1975 Blair, Will N. U.S. Geological Survey
Updater 01-JUL-1991 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-MAR-1993 Long, Keith R. 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