Gem Materials Pit

Producer in Bexar county in Texas, United States with commodity Sand and Gravel, Construction
Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Land status
  9. Ownership information
  10. Links to other databases
  11. Reporter information

Geologic information

Identification information

Deposit ID 10208470
MRDS ID TC36620
MAS/MILS ID 0480290016
Record type Site
Current site name Gem Materials Pit
Related records 10063008

Geographic coordinates

Point of reference Town
Geographic coordinates: -98.31282, 29.57634 (WGS84)
Elevation 235
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Bexar(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Schertz(quadrangle 1:24,000 scale)

New Braunfels(quadrangle 1:100,000 scale)

San Antonio(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Cibolo(hydrologic unit)

San Antonio(hydrologic accounting unit)

Central Texas Coastal(hydrologic subregion)

Texas-Gulf(hydrologic region)

Geographic areas

Country State County
United States Texas Bexar

Commodities

Commodity Importance
Sand and Gravel, Construction Primary

Nearby scientific data

Town (1) -98.31282, 29.57634

Economic information

Economic information about the deposit and operations

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

Land status

Ownership category Unknown

Ownership information

  • Type Operator
    Owner Gem Materials Inc
    ID 4101903
    Year 1977
  • Type Owner
    Owner Elgin Friesinhahn
    ID 4101903
  • Type Owner
    Owner Mike Friesinhahn
    ID 4101903

Reference information

Reporter information

Type Date Name Affiliation Comment
Reporter 12-MAR-80 Rlw U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Current status (per MSHA)

StatusActive since 05/11/1999
MSHA mine ID4101903
Mine name (MSHA)G E M Materials Inc
Current operatorG E M Materials Inc
Current controller (parent)Janice Friesenhahn
Mine typeSurface (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.