Mine detail: American Eagle

Previously called 'Bullion HillBlue BellAnd Bonanza'

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Location: Mariposa County, California, United States, North America
Lat / long: 37.55936, -120.25516
dep_id: 10030918
mrds_id: M009407
Commodity type: metallic
Major mineral: Copper, Zinc
Minor mineral: Gold, Silver, Lead
Operation type: Unknown
Deposit type: Replacement
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chalcopyrite, Galena, Pyrite, Sphalerite, Tetrahedrite
gangue: Barite, Calcite, Quartz, Sericite
orebody_fm: TABULAR
work_type: Surface/Underground
alteration: Hydrothermal, Sericitization
conc_proc: Oxidized Zone Above Adit Shows Streaks Of Azurite And Malachite.
Reporter: Gere, W., Fraticelli, L. A. (Albers, J.)
hrock_type: Schist
Structure: Schistosity Trends North, Rocks Extremely Fissile, Crinkled And Folded; Crinkles In Schistosity Plung 50 - 70 North Or South, Suggest Zone Of Shearing.
dy_ba: <
disc_yr: 1890
References:
  • Deposit:: BOWEN, O. E. AND CLIFFTON, G. H., 1957 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY, CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 1 & 2 , P. 199 - 200 .
  • Deposit:: ERIC, J. H., AND COX, M. W., 1948 , ZINC DEPOSITS OF THE AMERICAN EAGLE - BLUE MOON AREA, MARIPOSA COUNTY, CALIFORNIA; COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 142 - 144 .
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