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  3. Mineral Resource Data System (MRDS)

Amethyst

Past Producer in Sierra county in California, United States with commodity Gold
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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. Nearby scientific data
  9. Ore body information
  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 10086523
MRDS ID X025418
Record type Site
Current site name Amethyst
Related records 10165461

Geographic coordinates

Geographic coordinates: -120.84353, 39.48655 (WGS84)
Relative position 1 MI N OF ALLEGHANY

Site location context

Political divisions (FIPS codes)

Sierra(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Alleghany(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe 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 California Sierra

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 019N 010E 27 California

Comments on the location information

  • UTM EST. CLOSE TO OREGON CREEK

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • SEVERAL SML ORE SHOOTS OF HIGH GRADE ORE, AT JUNCTIONS OF MAIN VEIN W MINOR BRANCHES

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Nearby scientific data

(1) -120.84353, 39.48655
ListMap

Economic information

Ore body information

  • Strike N 02 W
    Dip E

Comments on the geologic information

  • MAIN VEIN BETWEEN TWO BELTS OF SERPENTINE, MAYBE SAME AS ONE AT SOUTH FORK MINE. 300 FT W IS A SHEAR ZONE VEIN W SOME QTZ WHICH STRIKES N & DIPS 60 W.

Economic information about the deposit and operations

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

Comments on the production information

  • IDLE, INACCESSIBLE

Reference information

General comments

Subject category Comment text
Deposit VEIN, ORE SHOOTS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Hayden, F. (Albers, 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 California resources

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