The Ruja Mine is a mercury mine located in Humboldt county, Nevada.
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.
Ruja Mine MRDS details
Site Name
Primary: Ruja Mine
Commodity
Primary: Mercury
Location
State: Nevada
County: Humboldt
District: Opalite District
Land Status
Land ownership: BLM Administrative Area
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Great American Minerals Co. And Crofoot Mining Co.
Years: 1970 -
Owner Name: H. C. Crofoot, Jr. And Great American Industries, Inc.
Home Office: Box 31, Mc Dermitt, 89421. Vincent Pacheco
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1970
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: Hot-spring Hg
Orebody
Form: IRREGULAR
Structure
Type: R
Description: Reg.Struct: Mcdermitt Caldera Collapse Structure
Type: L
Description: Ruja Fault
Alterations
Alteration Type: L
Alteration Text: Argillic, Silicic,
Rocks
Name: Basalt
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Name: Basalt
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Cinnabar
Comments
Comment (Geology): GEOL.COM: ROCK IS SILICIFIED; FRACTURES ARE COATED WITH MARCASITE, HGS, AND SILICA; CINNABAR OCCURS AS FAIRLY THICK COATINGS ON FRACTURE SURFACES, ASSOCIATED WITH MARCASITE AND CLEAR SILICA. ORE OCCURS IN A SHATTERED VESICULAR ZONE IN AN ANDESITIC BASALT FLOW CAPPED BY A DENSER FLOW ROCK. SOLUTIONS ROSE ALONG BOUNDARY TENSION FISSURE AND FORMED AN ORE BODY BENEATH THE RESTRICTING CAP ROCK
Comment (Deposit): 4 UNPATENTED MINING CLAIMS AND ONE FRACTIONAL CLAIM IN 1970, THE PROPERTY WAS LEASED BY GREAT AMERICAN MINERALS CO. WHO HAD GIVEN OPERATING RIGHTS TO THE CROFOOT MINING CO. THE MINE OPERATED AS A JOINT VENTURE BETWEEN THESE TWO COMPANIES AS RUJA MINING CO. ; INFO.SRC : 2 UNPUB REPT
Comment (Location): SE OF CORDERO MINE; PREVIOUS QUAD DESIGNATION = JORDAN MEADOW (1959) 1:625000
Comment (Production): PRODUCING, 1969, 1970. IDLE, 1971
Comment (Deposit): 4 UNPATENTED MINING CLAIMS
Comment (Workings): MAY STILL BE ACTIVE
References
Reference (Deposit): RYTUBA, J.J., 1976, GEOLOGY AND ORE DEPOSITS OF THE MCDERMITT CALDERA, NEV-ORE; U.S.G.S. OPEN FILE REPT 76-535.
Reference (Deposit): TINGLEY, J.V., 1970, UNPUBLISHED REPORT ON THE RUJA MINE: ON FILE AT NEV. BUREAU OF MINES, .
Reference (Deposit): SPRINGER, H. E., 1971, NEVADA MINES, MILLS, AND SMELTERS - IN OPERATION AS OF JULY 1, 1971: STATE INSPECTOR OF MINES, CARSON CITY, NEVADA, 21 P.
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
