The Rianda is a mercury mine located in Santa Clara county, California.
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
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.
Rianda MRDS details
Site Name
Primary: Rianda
Secondary: Half Dome
Commodity
Primary: Mercury
Location
State: California
County: Santa Clara
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Antone A. Rianda
Production
Year: 1960
Time Period: To 1960
Material type: HG
Description: Cp_Grade: ^5-15 Lb/Ton
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
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
Structure
Type: L
Description: Serpentine - Sandstone Contact, Hayward Fault
Alterations
Alteration Type: L
Alteration Text: Silica Carbonate Alteration Of Serpentine
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Cinnabar
Gangue: Marcasite
Gangue: Chalcopyrite
Gangue: Pyrite
Comments
Comment (Location): LOCATED AT ADIT
References
Reference (Deposit): HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252
Reference (Deposit): BAILEY, E. H., USGS, PERSONAL FILES
Reference (Deposit): AVIS, F.F. AND JENNING, C.W., 1954, MINES AND MINERAL RESOURCES OF SANTA CLARA COUNTY, CALIF.: CJMG, V. 50, P. 342-354
Reference (Production): USBM DATA
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.
