Commodities
PrimarySilver, Lead
SecondaryCopper, Gold
TertiaryManganese, Zinc, Bismuth
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR TO PINCH-AND-SWELL
Ore controlSee Comments
Materials
Ore mineralsArgentite, Cerargyrite, Chalcocite, Chalcopyrite, Galena, Proustite, Pyrargyrite, Pyrite, Silver, Sphalerite, Tennantite
GangueFluorite, Nontronite, Psilomelane, Quartz, Rhodochrosite, Wad
Geology
Host rockLatite · Eagle Gulch Latite
Associated rockLatite · Eagle Gulch Latite
StructureBonanza Caldera, Sawatch Range, San Juan Volcanic Field, Rio Grande Rift
Tectonic settingCentral Cordillera (Southern Rocky Mtns.)
AlterationEarly Barren Stage Of Alteration By Fumarolic Or Acid-Hot Spring Activity Resulted In Intense Silicification, Wallrock Replacement By Jasper And Alteration Products Hematite, Diaspore, Alunite, Barite, Zunyite, Rutile, And Kaolin Minerals. Later Mineralizing Stage By Alkaline Or Neutral Solution Deposited Ore And Gangue And Caused Micaceous Alteration (Sericite And Chlorite) And Calcite, Quartz, And Pyrite.
Economic & production
Development statusPast Producer
First production1898
Last production1922
Discovery year1882
Identification
Deposit ID10012566
MRDS IDD008248
Alternate namesEagle-Hawk Mine Eagle and Hawk Claims
RegionNA
Data scoreB
Coordinates38.26862, -106.12921
References
PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT, SAGUACHE COUNTY, COLORADO: COLORADO GEOLOGICAL SURVEY BULL. 9, 136 P.BURBANK, W.S., 1932, GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO: USGS PROF. PAPER 169, 166 P.WUENSCH, C.E., 1923, SECONDARY ENRICHMENT AT THE EAGLE MINE, BONANZA, COLO.: AIME TRANS., V. 69, P. 96-109.BURBANK, 1932, P.151, AS COMPILED FROM USGS AND USBM RECORDS