Commodities
PrimaryGold, Silver
SecondaryTungsten
TertiaryCopper, Nickel
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
Ore controlPrimary Joints And Fractures In Stock
Materials
Ore mineralsChalcopyrite, Pyrite, Scheelite
GangueEpidote, Hematite, Limonite, Malachite, Montmorillonite, Quartz
Geology
Host rockTonalite · Tonalite;Metasedimentary Rocks--Mica Schist
Associated rockTonalite · Tonalite;Diorite And Andesite
StructureFront Range Uplift, Cheyenne Basin, Big Thompson Anticline, Milner Mountain Fault, Fletcher Hill (Buck Horn) Fault, Masonville Anticline, Buckhorn Syncline, Masonville Stock , Redstone Fault
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
AlterationHydrothermal Montmorillonite In Fractures; Wallrock Silicification ; Sericitization Of Andalusite In Schist
Economic & production
Development statusProducer
Last production1955
Discovery year1900
Identification
Deposit ID10107993
MRDS IDD010561
RegionNA
Data scoreB
Coordinates40.48692, -105.21087
References
WOLFE, J.A., 1953, GEOLOGY OF THE MASONVILLE MINING DISTRICT, LARIM ER COUNTY, COLORADO: COLORADO SCHOOL OF MINES M.SC. THESIS T-789.BRADDOCK, W.A., AND OTHERS, 1970, GEOLOGIC MAP OF THE MASONVILLE QU ADRANGLE, LARIMER COUNTY, COLORADO: USGS MAP GQ-832.COBB, H.S., 1960, TUNGSTEN MINES OF COLORADO: COLORADO METAL MINING FUND BD.BELSER, CARL, 1956, TUNGSTEN POTENTIAL IN CHAFFEE, FREMONT, GUNNISO N, LAKE, LARIMER, PARK, AND SUMMIT COUNTIES, COLORADO: USBM IC-7748, P . 18.BLM MINERAL SURVEYSVANDERWILT, J.W., 1947, MINERAL RESOURCES OF COLORADO: COLORADO MIN ERAL RESOURCES BD., P. 139.COLORADO DIV. MINES INF. REPTS.VANDERWILT, 1947, P. 139; BELSER, 1956, P. 18