Mine detail: Star Mine

Previously called ''

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Location

Lat / long:

38.11973, -105.33335

Resource(M)

Primary:	Silver, Aluminum
Tertiary:	Gold
Ore:	Pyrite
Gangue:	Alunite, Diaspore, Quartz
Discovery year:	1882

Production

Operation type:	Underground
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer

Geology

Host type:	Trachyte
Associated rock:	Game Ridge Trachyte; Possibly Rosita Andesite Influence;Rhyolite Of Rosita Volcano (Dike)
Associated type:	Rhyolite,Trachyte
Structure:	Rosita Volcanic Center, Wet Mtns, Faults, Volcanic Vent, Rhyolite Dike
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Weak Argillization

References

MRDS	D007865
DEP	10012309
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:: 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.