Mine detail: St. Louis Mine

Previously called 'Morningstar Mine'

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Location

Lat / long:

31.75902, -110.76429

Resource(M)

Primary:	Lead, Silver
Secondary:	Gold, Zinc, Copper
Tertiary:	Molybdenum, Iron
Ore:	Bornite, Chalcopyrite, Covellite, Galena, Gold, Malachite, Molybdenite, Pyrite, Silver, Sphalerite
Orebody form:	THIN, DISCONTINUOUS, SUBPARALLEL
Discovery year:	1874

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer

Geology

Host rock:	Apache Canyon Formation
Host type:	Quartzite,Shale,Argillite,Siltstone,Limestone
Associated type:	Quartz Latite
Structure:	Tilting And Broad Open Folds In S. And Extensive Faulting In N; Homoclinal, Attitude Of Veins Is Generally Conformable To Bedding N 50 - 60 E, 28 - 38 Se. Ne Trending Shear Zone
Tectonic:	Basin And Range
Alteration processes:	Host Rock Altered And Metamorphosed To Hornfels And Skarn. Pyrite And Sericite.

References

MRDS	M050166
DEP	10039494
Reference	{Deposit:: STEWART, J.C., 1971, GEOLOGY OF THE MORNINGSTAR MINE AREA, GREATERVILLE MINING DISTRICT, PIMA COUNTY, ARIZONA: UNIV. ARIZ., MS THESIS.}{Deposit:: SCHRADER, F.C., 1915, MINERAL DEPOSITS OF THE SANTA RITA AND PATAGONIA MOUNTAINS, ARIZONA: USGS BULLETIN 582, P.}{Deposit:: KEITH, S.B., 1974, INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN, 189, P. 121.}{Deposit:: DREWES, H., 1971, USGS MAP I - 613 (SAHUARITA QUAD)}{Deposit:: DREWES, H., 1970 , USGS BULLETIN 1312 - A.}{Production:: STEWART, J. C., 1969, P. 39 ; ABM BULLETIN 189, P. 121.}
Reporter	Johnson, Kris H. (Creasey, S.C.)