Commodities
PrimaryManganese, Silver
TertiaryCopper, Lead, Molybdenum, Gold
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR, TABULAR
Ore controlHigh Grade Silver Chloride Pockets In Fracture Fillings And Replacements Of Jur Rhyolite And Latite Porphyry Breccia Along A Fault Zone
Materials
Ore mineralsCerargyrite
GangueHematite, Limonite, Psilomelane
Geology
Host rockRhyolite
Associated rockPyroxenite
StructureDeposit Occurs In More Or Less Tabular Sheet Contained In Fault Breccia Zone, Rhyolite Is Crushed, Recemented, And Locally Closely Banded By Flow Structure
Tectonic settingCorral Canyon Fault Block; Downthrow To Sw
AlterationOxidized Extensively
Economic & production
Development statusPast Producer
Production years1896-1964
First production1878
Last production1950
Discovery year1877
Identification
Deposit ID10037094
MRDS IDM030389
RegionNA
Data scoreA
Coordinates31.45611, -110.70917
References
KEITH, 1975, ABM BULL 191.ELSING AND HEINEMAN, 1936, ABM BULL 140.SCHRADER, 1915, USGS BULL 582.ABGMT CLIPPINGSILE, HERMOSA MINE.ABGMT FILES, STANTON B. KEITH.ABGMT-USBM FILE DATA.Wilburn, D.R., and Stanley, K.A., 2013, Exploration Review: Mining Engineering, v. 65, no. 5, p. 39.Wildcat Silver Corp., 2013, Hermosa Project: Accessed May 17, 2013 at http://www.wildcatsilver.com/hermosa-project/overview/default.aspx.Snider, Joshua, 2012, Hermosa Project, Santa Cruz County, Arizona, Preliminary Economic Assessment Form 43-101F1 Technical Report, 162 p. [download 2012 Hermosa PEA (43-101) from http://www.wildcatsilver.com/hermosa-project/metallurgy/default.aspx.]KEITH, 1975; ELSING AND HEINEMAN, 1936