Mine detail: Silver Jack Mine

Previously called 'Patented Claim: Silver Jack, MS 20073Unpatented Claims: Silver Jack Nos. 2-10, 12-14Silver Jack Extension'

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Location

Lat / long:

38.10167, -107.47146

Resource(M)

Primary:	Silver, Lead, Gold
Ore:	Pyrite
Gangue:	Limonite

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
Last production ended:	1931

Geology

Host type:	Monzonite,Rhyodacite,Andesite
Associated rock:	Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Monzonite And Monzonite Porphyry);Early Intermediate-Composition Lavas And Related Rocks--Intrusive Rocks (Andesite And Rhyodacite Porphyries);Early Intermediate-Composition Lavas And Related Rocks--Lava Flows;Early Intermediate-Composition Lavas And Related Rocks--Cone Breccias
Associated type:	Monzonite,Rhyodacite,Quartz Latite,Andesite
Structure:	San Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera, Cimarron Volcano
Tectonic:	Central Cordillera (Southern Rocky Mtns)

References

MRDS	D011576
DEP	10014691
Reference	{Deposit:: LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.}{Deposit:: LIPMAN, P.W., AND OTHERS, 1973, REVISED VOLCANIC HISTORY OF THE SAN JUAN, UNCOMPAHGRE, SILVERTON, AND LAKE CITY CALDERAS IN THE WESTERN SAN JUAN MOUNTAINS, COLORADO: USGS JOUR. RESEARCH, V. 1, NO. 6, P. 627-642.}{Deposit:: COLORADO DIV. MINES INF. REPTS.}{Deposit:: BLM MINERAL SURVEY MS 20073}{Deposit:: STEVEN, T.A., AND OTHERS, 1977, MINERAL RESOURCES OF STUDY AREAS CONTIGUOUS TO THE UNCOMPAHGRE PRIMITIVE AREA, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS BULL. 1391-E, P. 36-37, 85.}
Reporter	Schwochow, Stephen D.