Mine detail: Songbird Mine

Previously called ''

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Location

Lat / long:

38.1614, -105.46446

Resource(B)

Primary:	Perlite
Secondary:	Silver, Lead
Ore:	Galena, Magnetite, Pyrite
Gangue:	Illite, Jarosite, Quartz
Orebody form:	tabular, lensoid
Discovery year:	1895

Production

Operation type:	Surface-Underground
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Undivided Gneiss
Host type:	Gneiss
Associated rock:	Rim Breccia And Latite Flow
Associated type:	Tuff,Rhyolite,Latite
Structure:	Silver Cliff Volcanic Center, Wet Mtns, Wet Mtn Valley, Concentric Faults Of Ben West Hill
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Strongly Argillized, White, Bleached

References

MRDS	D007927
DEP	10012347
Reference	{Deposit:: CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403}{Deposit:: EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 405-472}{Deposit:: COLORADO DIVISION OF MINES RECORDS, 1981}{Deposit:: SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081.}
Reporter	Collins, Donna B.