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Mine detail: Boulder District-Colorado
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North America
United States
Colorado
Boulder
Previously called ''
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Location
Lat / long:
40, -105.45059
Resource(M)
Primary:
Tungsten
Discovery year:
1900
Production
Operation type:
Unknown
Deposit type:
VEINS
Production size:
Yes
Development status:
Producer
Geology
Structure:
PORPHYRY DIKES OF EARLY TERTIARY AGE CUT THE PRECAMBRIAN ROCKS, INTERSECTIONS OF BRECCIA REEFS (FAULTS OF LARAMIDE AGE WITH LATER LARAMIDE FRACTURES)
Alteration processes:
CLAY ALTERATION, SERITICIZED ROCK BORDERING ORE
References
MRDS
D001107
DEP
60000019
Reference
{Deposit:: LEMMON, D.M., UNPUBLISHED DATA.}{Deposit:: LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.}{Deposit:: VANDERWILT, J.W., 1947, MINERAL RESOURCES OF COLORADO, STATE OF COLO. MIN. RES. BOARD, P.328-336.}