Mine detail: Steppe Mine

Previously called 'Little Mary Mine'

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Location

Lat / long:

32.01623, -111.91321

Resource(B)

Primary:	Gold, Silver, Copper, Lead
Secondary:	Zinc
Tertiary:	Rhenium, Molybdenum, Barium-Barite
Ore:	Bornite, Chalcocite, Galena, Pyrite, Tetrahedrite
Gangue:	Barite, Dolomite, Molybdenite, Quartz
Orebody form:	LENSING

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1917
Last production ended:	1970

Geology

Host type:	Andesite
Associated type:	Andesite
Structure:	Ne Vertical Fault Displacing Little Mary And Chicago Veins; Nw Fau Lt (Dip 40 Ne) Displacing Little Mary Vein
Alteration processes:	Oxidation And Leaching Of Wall Rock

References

MRDS	M050622
DEP	10039670
Reference	{Deposit:: KEITH, 1974, ABM BULL 189, P. 111.}{Deposit:: WILLIAMS, 1962, PHD THESIS UNIV OF ARIZONA, 145 P.}{Deposit:: ABGMT CLIPPINGS FILE DATA.}{Deposit:: PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.}{Deposit:: ARIZ. BUREAU OF MINES BULL. 137.}{Other Database:: CIMRI}{Production:: KEITH, 1974.}
Reporter	Peterson, Jocelyn A., Orris, Greta J.