Mine detail: Hermosa Mine

Previously called ''

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Location

Lat / long:

31.45625, -110.70984

Resource(M)

Primary:	Silver, Manganese
Tertiary:	Gold, Molybdenum, Lead, Copper
Ore:	Cerargyrite
Gangue:	Hematite, Limonite, Psilomelane
Orebody form:	IRREGULAR, TABULAR
Discovery year:	1877

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1878
Last production ended:	1950

Geology

Host type:	Rhyolite
Associated type:	Pyroxenite
Structure:	Rhyolite Is Crushed, Recemented, And Locally Closely Banded By Flow Structure, Deposit Occurs In More Or Less Tabular Sheet Contained In Fault Breccia Zone
Tectonic:	Corral Canyon Fault Block; Downthrow To Sw
Alteration processes:	Oxidized Extensively

References

MRDS	M030389
DEP	10037094
Reference	{Deposit:: KEITH, 1975, ABM BULL 191.}{Deposit:: ELSING AND HEINEMAN, 1936, ABM BULL 140.}{Deposit:: SCHRADER, 1915, USGS BULL 582.}{Deposit:: ABGMT CLIPPINGSILE, HERMOSA MINE.}{Deposit:: ABGMT FILES, STANTON B. KEITH.}{Deposit:: ABGMT-USBM FILE DATA.}{Production:: KEITH, 1975; ELSING AND HEINEMAN, 1936}
Reporter	Calder, Susan R., Peterson, Jocelyn A.