1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Sigma Mine

Past Producer in Inyo county in California, United States with commodity Boron-Borates
Map
XML
JSON
KML
D

Geologic information

Identification information

Deposit ID 10260537
MAS/MILS ID 0060271260
Record type Site
Current site name Sigma Mine
Alternate or previous names White Monster, Sigma-White Monster Mine

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -116.69398, 36.32108 (WGS84)
Elevation 830
Location accuracy 100(meters)
(click for info)

Geographic areas

Country State County
United States California Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 025 N 003 E 07 California

Commodities

Commodity Importance
Boron-Borates Primary

Nearby scientific data

Main Entrance (1) -116.69398, 36.32108
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Non-metallic
Significant No

Land status

Ownership category National Monument

Ownership information

  • Type Unknown
    Owner Tennaco Mining Inc.
  • Type Unknown
    Owner U.S. Borax And Chemical Corp.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0060271260

Bibliographic references

  • Deposit

    CALIF. DIV. MINES AND GEOL. SPECIAL REPORT 125, 1976, P. 28.

  • Deposit

    CALIF. DIV. MINES AND GEOL. SPECIAL PUBLICATION 58, 1981,

  • Deposit

    P. 39.

Reporter information

Type Date Name Affiliation Comment
Reporter 31-MAR-1991 Lowe, Nathan T. U.S. Bureau of Mines