The Bonanza No 2 is a tungsten mine located in Boulder county, Colorado.
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
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Bonanza No 2 MRDS details
Site Name
Primary: Bonanza No 2
Commodity
Primary: Tungsten
Location
State: Colorado
County: Boulder
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Granite
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Not available
Comments
Comment (Production): BETWEEN 10,000 AND 100,000 UNITS WO3
Comment (Geology): GEOL.DESC: TUNGSTEN MINERALIZ. IN CHALCEDONIC QTZ VEINS OF TERTIARY AGE CUTTING PRECAMB. GRANITE AND METAMORPHIC ROCKS. MINUTE CRYS. OF FERBERITE DISSEM. THRU FINE GR. QTZ (HORN ORE), AND COARSELY CRYS. FERBERITE FORMING BRECCIA WITH COUNTRY ROCK AND EARLY QTZ VEINS (SOFT ORE)
Comment (Deposit): MOST TUNGSTEN VEINS 6IN TO 3FT THICK
References
Reference (Deposit): SHARPS, 1965, COLO SCH MINES MIN IND BULL, V 8, NO
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