The New Idria is a mercury mine located in San Benito county, California at an elevation of 2,720 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 2,720 Feet (829 Meters)
Commodity: Mercury
Lat, Long: 36.41444, -120.67361
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
New Idria MRDS details
Site Name
Primary: New Idria
Commodity
Primary: Mercury
Location
State: California
County: San Benito
District: New Idria
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: New Idria Quicksilver Mining Co.
Years: 1950 -
Production
Year: 1962
Time Period: Thru 1962
Material type: HG
Description: Cp_Grade: ^3-20 Lb/Ton
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1854
Discovery Year: 1853
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: L
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Mineral Deposit Model
Not available
Orebody
Form: TABULAR, IRREGULAR
Structure
Type: R
Description: N 70 W Coalinga Anticline New Idria Thrust.
Type: L
Description: New Idria Thrust Fault And Other Localized Faults
Alterations
Alteration Type: L
Alteration Text: Induration Of Sandstone And Shale
Rocks
Name: Shale
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Shale
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Metacinnabar
Ore: Cinnabar
Ore: Mercury
Gangue: Pyrite
Gangue: Calcite
Gangue: Dolomite
Comments
Comment (Workings): LOWER LEVELS OF ORE ZONE CRESCENT SHAPED WITH THE CONVEX SIDE TO THE SOUTH. ORE BODIES VARY FROM 3 TO 50 FT IN WIDTH AND CINNABAR OCCURS IN IRREGULAR CONCENTRATIONS ALONG THE VEINS.
Comment (Geology): AREA IS LARGE OVAL BODY OF STRONGLY SHEARED SERPENTINE RIMMED BY FRANCISCAN SANDSTONE AND PANOCHE FORMATION (SANDSTONE AND SHALE). STRUCTURE IS AN ASSYMMETRIC ANTICLINE DOME WITH OVERTURNED BEDS AND NEW IDRIA THRUST ON NE FLANK.
References
Reference (Deposit): AVERILL, C. V., 1947, MINES AND MINERAL RESOURCES OF SAN BENITO COUNTY, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 43, P. 41 - 60
Reference (Deposit): HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252
Reference (Deposit): 5) BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.
Reference (Deposit): 6) FORSTNER, W., 1908, QUICKSILVER RESOURCES OF CALIFORNIA: CDMG BULL. 27, 270 P.
Reference (Deposit): 7) RANSOME, A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-486
Reference (Deposit): 1941 DIREXPL WITH HELP FROM USBM, GOT GOOD INFORMATION ON ORE STRUCTURES
Reference (Deposit): 1952 DIREXPL DMEA EXPLORED WEST IDRIA AREA
Reference (Deposit): 1955 DIREXPL DMEA EXPLORED MOLINO ZONE
Reference (Deposit): 1957 DIREXPL DMEA EXPLORED SULFUR SPRINGS AREA
Reference (Production): USBM DATA
Reference (Deposit): ECKEL, E. B. AND MYERS W. B., 1946, QUICKSILVER DEPOSITS OF THE NEW IDRIA DISTRICT SAN BENITO AND FRESNO COUNTIES, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 42, P. 81 - 124
Reference (Deposit): BAILEY, E. H., U.S.G.S., PERSONAL FILES
California Gold
"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.
